N7818623111111111111111111111111111111111111111111111

Report No. 77-042Contract No•. NAS8-32024

(NASA-CR-150541) WISP INFORflATIONSYSTEM USEE'! SNANUAL Final ReportComputing g Inc*a Huntsville g Ala~)

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FINAL REPOR TWISP INFORMATION DISPLAY

SYSTEM USER'S MANUAL

.January 30, 1918 .

Prepared for:

George C. Marshall Space Flight CenterNational Aeronautics and Space AdministrationMarshall Space Flight Center, Alabam.a 35812

E&~0 M P UTI N 6, INC. III'------IaIID ....a_

https://ntrs.nasa.gov/search.jsp?R=19780010680 2020-07-23T14:59:46+00:00Z

Page Intentionally Left Blank

PREFACE

The Wind Shear Information Display System (WISP) User'sManual provides a detailed description for using WISP to collect, store,and process wind shear data received from Laser Doppler Velocimeter (LDV)systems. WISP was developed for NASA at Marshall Space Flight Center(Contract No. NAS8-32024) to store and process wind shear data for NASAanalysts.

Prepared by:P. L. AlleyG. R. Smitb.

Approved by:

Page Intentionally Left Blank

TABLE OF CONTENTS

Section

LIST OF ACRONYMSLIST OF FIGURESLIST OF TABLES

Page

ivvv

1. INTRODUCTION 1

1.1 Document Structure 1

2. SYSTEM START-UP PROCEDURE 3

2. 1

2.2

2. 3

Starting WISP from a Power-Off Condition

2. 1. 1 Power On2. 1. 2 Disk Drive2.1.3 Loading RSX-llM into Memory2.1.4 Using the Tape Transport

Recovering WISP from a System TlCrash"

To ROLLIN the System

3

3338

12

12

3. SOFTWARE DESCRIPTION 15

3. 1

3.2

Overview

WISP Control Program Description

15

15

3.2. 1 Oper-ator Assistance Displays {Key=in HELP} 173.2.2 Data Source Selection (Key-in S) 173.2.3 X-Y Plot Selection (Key-in P) 253.2.4 Tabular Data Selection (Key-in T) 283.2.5 Calculation Values Selection (Key-in C) 283.2. 6 Screen Se1ecti.on (Key-in X) 303.2.7 Begin Processing Section (Key-in G) 303.2.8 Stop Selection (Key-in Q) 303.2.9 Magnetic Tape Positioning Commands 30

4. DATA COLLECTION 33

4. 1 Data Collection Program Description

i

33

Section

4.2

TABLE OF CONTENTS(Co ntinued)

Data Tape Format

Page

36

5. DA TA DISPLAY 39

5. 1 PLOT Program Description

5. 1. 1 Real-time Processing5.1.2 Post Processing

39

3939

6. TAPE DUMP PROGRAM DESCRIPTION 49

6. 1 TDUMP Detailed Description

6. 1. 1 Program Initiation and Termination6.1.2 Dump Parameter Selection6. 1. 3 Tape Manipulation6. 1. 4 Automatic Updating

49

49494951

7. 3-D DISPLAY SYSTEM DESCRIPTION 53

7. 1

7.2

7.3

7.4

INIT3D Detailed Description

WF3D Detailed Description

7.2. 1 Program Initiation7.2.2 Tape Manipulation7.2.3 Writing the 3-D File7.2.4 Termination

ROTATE Detailed Description

7. 3. 1 Program Initiation7. 3.2 Rotating Data in the 3D File7.3.3 Termination

PLOT3D Detailed Description

7.4. 1 Program Initiation7.4.2 Displaying the Data in the 3D File7.4. 3 Termination

ii

53

53

53535454

54

5454

. 54

54

545455

Section

7.5

7. 6

TABLE OF CONTENTS(Continued)

HLINE Detailed Description

7.5. 1 Program Initiation7. 5. 2 Hidden Line Removal7.5. 3 Termination

RESET Detailed Description

7. 6. 1 Program Initiation7.6.2 Restoring Hidden Lines7.6.3 Termination

Page

55

555555

55

555555

- APPENDIX A - GLOBAL DATA DEFINITIONS

APPENDIX B - TO BE SUPPLIED

iii

A-I

B-1

COP

DCADDEC

LDV

NASA

PLOT

RSX-IIM

TDUMP

WISP

LIST OF ACRONYMS

WISP Control Program

Data Acquisition TaskDigital Equipment Corporation

Laser Doppler Velocimeter

National Aeronautics and Space Administration

Data Display Task

DEC Operating System

Raw Data Dump Task

Wind Shears Program

iv

Figure No.

2-12-22-32-42-5

3-13-23-33-43-53-63-73-8

5-15-25-35-45-55-65-75-8

7-1

Table No.

4-1

5-1

6-1

LIST OF FIGURES

Title

Processor ConsolesDisk Drive Controls and IndicatorsCorrect Log-in ProcedureTape Transport Controls and In;dicatorsThreading the Tape Transport

Wind Shears - Control DisplayWind Shears - Operating Info rmationX-Y Plot SpecificationsWind Shears - Special OptionsWind Shears - Keyboard UsageWind Shears - General UsageTape Input RequestExample of Tabula r Data Output

PLOT Package Example 1PLOT Package Example 2PLOT Package Example 3PLOT Package Example 4PLOT Package Example 5Filter Plot of 20 Filters (2 JJ.sec Pulse Width)Filter Plot of 40 Filters (4 JJ.sec Pulse Wi.dth)Filter Plot of 80 Filters (8 JJ.sec Pulse Width)

Filter Plot Frames

LIST OF TABLES

Title

Data Tape Format

Intensity Quantization Levels

Raw Data Dump Formats

v

Page

459

1011

1618192021222429

4041424344454647

56

Page

37

48

50

(BLANK PAGE)

vi

1. Il"TTRODUCTION

The Wind Shears Program (WISP) is a real-time data acquisitionand display system developed by M&S Com.puting, Inc., Huntsville,Alabam.a, for the National Aeronautics and Space Administration (NASA)Electronics and Control Laboratory located at the George C. MarshallSpace Flight Center in Huntsville, Alabam.a, under Contract NAS8-32024.

WISP is executed on a Digital Equipm.ent Corporation (DEC)PDP-11/35 computer under the real-tim.e operating system RSX-IIMVersion 1. Extensive operator interaction provides the requisite datamode and data display parameters to the data acquisition (DCAD) anddata display (PLOT) tasks.

Data is acquired in real time from a pulsed Laser DopplerVelocimeter (LDV). The data represents positional inforrnation·andintegrated intensity information obtained from twenty to eighty datafilters. Each filter corresponds to a specific Doppler shift dependentupon the selected pulse width. Certain calculations are performed onthe data to obtain parameters for display.

Data display provides near' real-time feedback of wind shearactivity within the viewing volume. A flexible X, Y plot routine providesa variety of displays for examining the wind shear characteristics.

The WISP system supports the collection of data on magnetic tapefor perw..anent storage or analysis,., or both.

1. 1 Document Structure

Section 2 describes the hardware and software configurationrequired to execute the WISP system. Included in this section is a start-upprocedure from a power-dow-ncondition.

Section 3 describes the WISP operator control program and providesquery/response examples for initiating real-time or post processingoperations.

Section 4 describes the data collection task (DCAD) and outlinesthe calculations performed on the incoming data. Included in this sectionis a description of the magnetic tape format.

-1-

Section 5 describes the data display task (PLOT) and providesexamples of displays obtained from execution of the real-time simulationprogram.

Section 6 describes the raw data dump task (TDUMP), and providesexamples of operator actions required to obtain the desired dump format.

Section 7 describes the three-dimensLonal plot tasks, and providesinstructions fo r their use.

Appendix A provides desc riptions of each named variable in theintertask common block. These variables are passed between the activetasks fo r system communication.

Appendix B provides operating information with respect to possiblesystem anomalies. The procedures outlined herein will allow continuousdata collection, possibly at the expense of real-time visual displays. ­This appendix also provides information relative to recovery from anom­alous operations.

-2-

2. SYSTEM START-UP PROCEDURE

'J;'his section describes starting the hardware and software systemsof WISP.

2. 1 Starting WISP from a Power-Off Condition

The following sequence should be followed exactly.

2. 1. 1 Power On

To apply power to the system, the process console key should bemoved to the POWER position (see Figure 2-1). This should turn on powerto all the hardware components. When power is first supplied to the graphicsterminal, the screens are brightly illum.inated and should be cleared bydepressing the RESET PAGE key in the upper left corner of the terminalkeyboard.

2. 1. 2 Disk Drive

Within a few seconds after power is applied to the system, the LOADindicator light is illuminated on the disk drive (see Figure 2-2). The Produc­tion disk cartridge must be inserted on Unit 0 and the WFILES disk cartridgeon Unit 1 and the LOAD/RUN switches placed in the RUN position. After afew more seconds, the RUN and ONCYL indicators are illuminated. Notethat the WTPROT indicator should not be illuminated. If it is, the WTPROTmomentary contact switch must be depressed to clear it. If at any timeduring the session another disk is required, the LOAD/RUN switch must beplaced in the LOAD position. After a short time, the LOAD indicator isilluminated and the disk can be removed. The door cannot be opened unlesspower is 0:0- and the LOAD indicator is illum:inate.d.

2. 1. 3 Loading RSX-11M into Memory

WISP operates in the PDP-II family of programs under the controlof the standard DEC PDP-ll RSX-llM. RSX-11M is stored on the disk andmust be called into the processor memory before anything further can bedone•. A special memory unit with a small program that transfers RSX-llMfrom disk to memory is provided with WISP. The user simply causes theprocessor to begin running that program and RSX-IIM is automatically loaded.The procedure is as follows:

PDP-II/35

1. Place the ENABLE/F..ALT switch 1-71 the HALT position (down).

-3-

PROCESSOR CONSOLES

PDP-ll/35

Power

ou6;)

11 1

Lock

I

1 1 '0 1II

1 = Switch Up

o = Switch Down

o 1 ,0 0II

= 773010

Figure 2-1

-4-

DISK DRIVE CONTROLS AND INDICATORS

RUN WTPROT PWR RDY ONCYL FAULT

I I IWTPROTLOAD WT ED

I I. LOJ.-D.. ..... .. ...

CONTROLS lliDICATORS

Figure 2-2

-5-

2. Load the switch register with 773010 (octal) (see Figure 2-1).

3. Depress and release the LOAD ADRS switch.

4. Place the ENABLE/HALT switch in the ENABLE position(up).

5. Depress and release the STAR T switch.

The Monitor is now loaded into memory and identifies itself bydisplaying on the graphics terminal screen:

>RSX-I1M 08 48K Mapped

>RED DKO: = SYO:

>MOU DKO:

Note: In this manual underscoring is used to designate systemoutput, whereas user input is not underscored.

If the above message does not appear, the computer may not haveloaded the LOAD ADDRESS. To correct this situation, depress both theENABLE/HALT and START switches simultaneously. Then release theSTART switch and repeat steps 3 through 5 for loading RSX into memory.The user should then type MOU DKl: (RETURN).

At this time, the user should log into the system in the followingmanner:

o Ensure that the TTY LOCK key at the lower left corner ofthe graphics terminal keyboard is depressed.

o Enter at the keyboard the date and time in these formats:

> TIM MM/DD/YY(RETURN)

where

DD is the day (one or two digits).

MM is the month (one or two digits).

YY is the year (two digits).

-6-

Note: In this manual (RETURN) is used to indicate entryof the RETURN key immediately following thespecified data entry with no intervening blanks.

The prompt sign ( » will appear again. Enter

> TIM HH:MM:SS(RETURN)

where

HH is the hour (one or two digits).

MM is the minute (one or two digits).

SS is the second (one or two digits).

The prompt sign will appear again.

If an error is made during the entry described above, it can becorrected by either of the following methods:

o The RUBOUT key eliminates one character at a time,starting with the last character entered. When allcharacters back to and including the erroneous oneare rubbed out, the user can reenter them properly.Since the characters are stored on the screen, the

. RUBOUT does not actually remove their image, butsimply indicates that they have been deleted.

o The CTRL!U command rubs out an entire line at atime. Thus, if an error in entry is made near thebeginning of a line and not noticed immediately, theline can be canceled by depres sing the U key whileholding the CTRL key down. This causes the 1\ Ucharacters to be added at the end of the canceled lineand a line-feed, carriage return to take place. Theterminal is then ready for a new line.

The user is now logged into the system and can proceed. Thedesired program can now be requested by entering the command RUNand the program name. For example:

> RUN WISP(RETURN)

-7-

requests WISP to be run. Sections 3 and 4 describe how the user proceedsfrom this point. Figure 2-3 shows a correct log-in entry. The WISP Systemrequires only the name of the control program (COP) to be entered toinitiate the WISP process. For example:

>COP(RETURN)

will automatically start the control program.

2.1.4 Using the Tape Transport

A magnetic tape is not absolutely essential for operation of WISP,but since the user may wish to retrieve or store data on tape, this sectionexplains the working of the tape tr.ansport itself. Refer to Figure 2-4 forthe controls and indicators discussed below. Instructions for using thetape transport are:

o Place the PWR ON/OFF switch in the PWR ON position.

o Place the START/STOP switch in the STOP position.

o Place the ON LINE/OFF LINE switch in the OFF LINEposition.

o Place the LOAD/BR REL switch in the BR REL position.If it was already in the BR REL position, switch it toLOAD and back to BR REL again.

o Mount the magnetic tape reel on the lower capstan and threadthe tape according to Figure 2-5. If a write enable ring isnot mounted on the file reel, the FILE PROT indicator isilluminated and the tape can be read, but not erased orwritten. Thus, if the tape files are only to be read, but i.t 1snot anticipated that any files will be added to the tape, theuser may leave off the write enable ring to protect his tapefrom accidental erasure.

o Place the FWD/REW/REV switch in the FWD position.

o Place the LOAD/BR REL switch in the LOAD position.The tape is loaded into the vacuum columns and the LOADindicator is illuminated.

-8-

CO

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2-

3

TAPE TRANSPORT CONTROLS AND INDICATORS

IPWR ILOAD IRDYI

LD

I.~: ITILE IPT PROT

IOFF ISEL I WRT IFWD IREV I REW r

Indicators

LINE

,PWR ON ON LINE START ~

OFF.

LOAD

BR REL

OFF LINE

UNIT'SELECT

Figure 2-4

-10-

REW

. STOP

FWD

REV

Controls

THREADING THE TAPE TRANSPORT

Figure 2-5

-11-

o Place the STAR T /STOP switch in the START position. Thetape is advanced to the load point and the LD PT indicatoris illuminated.

o Ensure that the UNIT SELECT thumbwheel is in position 0for storing data and position 0 for reading data (post­processing).

o Place the ON LINE/OFF LINE switch in the ON LINEposition.

1£ at any time during an operating session a different tape is required,the user may reverse the above process to rewind a tape to the load pointan4 remove it, then follow the process to load a new tape. Before a tapecan be used, it must have been properly prepared as described in Section 7.

2.2 Recovering WISP from a System "Crash"

There may be times when an abnormal hardware or softwarecondition will cause the system to "crash," i. e., control of the system islost. The normal way to recover system control is as follows:

o Reboot the system as described in Section 2. 1. 3.

o Disregard messages that appear on the screen.

o Type the appropriate RUN command and proceed normally.

2. 3 To ROLLIN the System

In some cases there may be a disk "crash" which can only berecovered by placing a new copy of the system on the disk (ROLLIN).To ROLLIN, proceed as follows:

o Place the HALT switch down.

o Mount the ROLLIN tape on Unit 0 and place tape unit on-line.

o Enter 773050 (octal) in the console switches (refer toexample for normal system boot in Figure 2-1. Notethat this is a different number).

-12-

o Load ADDRESS.

o Remove HALT.

o Depress START.

The mes sage ROLLIN V07

Jl.1[.

will appear.

o Type /RW to rewind the tape.

To ROLLlL'"\T the production disk, type DKO: <MTO: SYSTEM/FI withthe production disk mO'Wlted on disk Unit O. To ROLLIN the FILES disk,type DKl: <MTO: FILES/FI with the FILES disk mounted on disk Unit LNote that both ROLLIN! s are contained on the same tape.

-13-

(BLANK PAGE)

-14-

3. SOFTWARE DESCRIPTION

3. 1 Overview

The WISP softvvare consists of a three-task structure which, whenoperated under the RSX-llM Operating System, provides for the collectionand analysis of real-time LDV data.

The main control task, COP, provides all operator interactionb y- means of a query/response session. This allows the operator toselect data collection and/or plot paraIneters as well as data source (i. e. ,LASER, TAPE). At the conclusion of the session, the operator specifiesthe selection to go (G) or to terminate (Q). COP will start (0 r stop) thetwo remaining tasks, DCAD and PLOT.

DCAD is the data collection task. Incoming interrupts from theLDV processor are fielded by a device handler. The data is placed in aspecified buffer area and calculations are performed. At the completionof each frame of data, consisting of 100 data words transferred from theLDV processor, DCAD signals PLOT that a frame is ready for plot outputproces sing.

PLOT prepares the computed data values for graphic output. Atany time PLOT may be interrupted by the operator to change plot charac­teristics or to do any of the functions allowed by COP. The interrupt ofplot activities is accomplished by typing COP <CR> at the terminal.When the G command is given, COP will stop and PLOT will resume fromthe point of interruption.

The remainder of this section describes in detail the controlprogram, Section 4 describes the data collection task (DCAD), andSection 5 describes the PLOT task.

3.2 WISP Control Program Description

The WISP Control Program (COP) provides for all operatorinteraction with the WISP System. Through tutorial question and answersequences, COP allows considerable flexibility in data parametermanipulation.

Figure 3-1 presents the main control display for the WISP system.Each of the key-in characters are discussed in detail below. Responses tothe queries presented in the following paragraphs are nYESrt or rtNG. rtWhere responses other than rrYEsrr or rtNG" are required, a description ofthe type of response required is provided.

-15-

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-1

3.2. 1 Operator Assistance Displays (Key-in HELP)

If during the query/response session the operator requires assistancein determining the proper response? he may key-in the word11HELpt' whichwill cause the display shown in Figure 3-2 to be presented.

The l'HELP" displays provide tutorial infonnation about the WISPsystem and the options which are av-ailable to the operator for the graphicaldisplay of data and for general keyboard usage. Figures 3-3 through 3-6present the various assistance displays. Upon leaving the HELP mode? theoperator response to the query previous to HELP mode entry is required.

3.2. 2 Data Source Selection (Key-in S)

Three data sources are available to the WISP system: LASER?TAPE? and DUMMY. The default source is LASER. The full complementof WISP queries for each data source will be presented below? althoughnot all queries will appear each time the charader "SI! is entered.

3.2.2. 1 LASER Data Source

Selection of LASER as a data source sets the 'WISP operating modeto real time. Upon execution of the IIGII key-in, the laser is enabled andcollection of data from the laser signal processor ensues.

Query

DATA SOURCE IS SET FOR LASER DATA. OK?'

Query

NEXT SCAN NUMBER IS 1. OK?

Query

DO YOU WANT MANUAL ANGLE SELECTION?

If the response is IIYES", three queries will appear requestingthe angle data (see Section 3. 2. 3).

Query

NO DATA WILL BE RECORDED. OK?

If data reco rding is selected, tape po sitioning info rmation will berequested, followed by:

Query

ENTER TAPE LABEL - UP TO 80 CHARACTERS.

-17-

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The acceptable response is any string of up to 80 alphanurn.ericcharacters, 0 r CR which inserts all blanks. The tape label is intended tohelp the operator locate the desired file (on a multifile tape) •. Thisfeature is particularly useful during post analysis of the data. If record­ing is selected, the display shown in Figure 3-7 is presented to allow tapepositioning. Upon entry of llQTll or IIPF" from the tape control display,control is returned to the control program.

3.2. 2.2 TAPE Data Scui"ce

Selection of TAPE as a data source sets WISP to the post analysismode. Data input is expected from data tapes recorded during real':timeoperations. The data collection task is inhibited during this mode.

Query

DATA SOURCE IS SET FOR TAPE DATA. OK?

A IIYESII response causes the tape control display (Figure 3-7)to appear, at which time the operator may manually position the tape tothe desired spot for processing, or he may specify tape search param-"eters. If tape search is requested, an info rmation dis.play \vill appearinforming the operator of the action to take to halt the tape motion. Thetape search may be halted at any time by throwing sense switch 0 on thecomputer consolec

3.2.2.3 DUMMY Data Source

A real-time simulator has been provided which generates predictablepatterns for display. This data source may be used to confirm computeroperation or as a training and familiarization tool, o~ both.

Query

DATA SOURCE IS SET FOR DUMMY DATA. OK?

Query

BLOCK COUNT IS 10000. OK?

Note: The simulator requires that a non-zero block count be entered.

The acceptable response is an integer number up to 32767.

-23-

HELPDHFDFFBFFRBRSRRWS5PFOJ

FUNCTIO~

OBTAIN ASSISTANCEDISPLAY FILE HEADERSPACE TO DBt END-OF-FILEFORWARD SPACE FItEBACKSPACE FILEFORWARD SPACE RECORDSBACKSPACE RECORDSSEARCH TAPE REQUESTREWIND THE TAPEPROCESS SAME SCANPROCESS THIS FILETERMINATE REQUEST

Figure 3-7

-24-

Query

BLOCK SPACING IS 10 TICKS. OK?

Note: The simulator runs on the basis of line clock ticks (60 persecond). A spacing of 10 ticks is equivalent to a LASERdata rate of 6 frames a second.

The acceptable response is an integer number up to 32767.

Query

PULSE WIDTH IS 8. OK?

The acceptable response is the integer 2, 4, or 8.

Note: The siInulator allows any of the t.hree pulse widths operationalon the laser.

The following three queries allow entry or review of angle information:

Query

ELEVATION ANGLE IS 0 DEGREES. OK?

PITCH Al'iiGLE IS 0 DEGREES. OK?

AZIMUTH A-T\TGLE IS 0 DEGREES. OK?

The acceptable response is an integer specifying the desired anglein degrees.

The queries for data recording are then displayed. The text andresponse{s) are identical to those for the LASER data source.

3.2. 3 X-Y Plot Selection (Key-in P)

The 'WISP system provides an extremely fleXible X-Y plot packagefor the graphic display of data obtained during real-time operations, or foranalysis during post processing studies. Figure 3-3 presents the PlotSpecification parameters available for graphic representation. A..1'1additional feature provided by the WISP plot package is the capability toplot two dependent variables versus two independent variables, provided

-25-

the respective variables in X and Y have similar axis extents. Only oneaxis in X and one axis in Yare provided.

A detailed description of the PLOT task is presented in Section 5.

3~ 2.3. I X-Y Plot Queries/Responses

Query

A PLOT IS REQUESTED. OK? or

NO PLOT IS REQUESTED. OK?

If the query "NO PLOT IS REQUESTED. OK?" is answered "YES"the following query appears:

NO FILTER PLOT IS REQUESTED. OK?

A "NO" response to this query causes the line "FILTER PLOT ISREQUESTED. OK?" to appear. Answering "YES" terminates the plotrequest query sequence and causes the primary control display (Figure 3-1)to appear.

Query

X-Y PLOT IS SL RANGE VS VEL-MAX. OK?

This plot selection is provided as the default. Any desired X, Ypair may be selected by answering "NO" to this query. A "NO" responsecauses the next two queries to appear.

Query

X IS SL RANGE. ENTER YES OR ONE OF THESE. IN, SW, VP, PH,PV, VM, MH, MV, SR, GR, AL, MO, MI, M2, VA, SD, TM.

Query

Y IS VEL-MAX. ENTER YES OR ONE OF THESE. IN, SW, VP, PH,PV, VM, MH, MV, SR, GR, MO, MI, M2, VA, SD, TM.

-26-

Query

DO YOU WANT TO PLOT A SECOND FUNCTION?

A IIYESII response causes the previous three queries to appear in order.

Query

X AXIS MIL'f AND M.A..X ARE 0 TO 30000. OK? (YES, NO, DEFAULT)

Query

Y AXIS MIN AL'fD MAX ARE - 30 TO 30. OK? (YES, NO, DEFAULT)

Query

DATA COLLECTION IS BY SCAN. OK?

Normal scanning consists of up to 200 range cells dependent upon therange increment selected on the control panel of the processor.

Query

DATA COLLECTION IS AT CONSTAl'TT RANGE. OK?

Fixed range cell processing may occur by setti.1'lg the processor tot1MA-.T\fUAL. II This query provides for time plots rather than scan plots.

Query

ENTER START Ai'\fD STOP TIlvfES (IN SECONDS) FOR PLOT.

Two integer numbers between 0 and 32767 separated by commasmust be entered for either automatic or m.anual updating to occur.

Query

UPDATE MODE IS AUTO. OK?

A positive (YES) response to the last query will cause the primarycontrol display (Figure 3 -1) to appear.

-27-

3.2.4 Tabular Data Selection (Key-in T)

The selection of tabular data will cause the computed values ofeach frame to be output to the display. A default condition of no tabulardata has been implemented to increase the processing time available tothe vector plot routines. An example of tabular data output is provided inFigure 3-8.

Query

NO TABULAR DATA IS SELECTED. OK?

3.2.5 Calculation Values Selection (Key-in C)

The calculation values selection provides for manual control ofeither the intensity threshold, or the velocity threshold, or both thresholds.Thresholding is accomplished as follows:

o Intensity thresholding - All intensities equal to or fallingbelow the threshold "T" are rejected and are not includedin the calculations. T units are counts ranging from 0 to 512.

o Velocity thresholding - Two velocity thresholds are providedto permit "zeroing in" on specific wind velocities. The LOvelocity threshold rejects all returns whose computed velocityis less than that specified. The HI velocity threshold rejectsall returns whose computed velocity is greater than thatspecified.

3.2.5.1 Queries/Response(s}

Query

INTENSITY THRESHOLD IS O. OK?

Query

LO VELOCITY THRESHOLD IS O. OK?

Query

HI VELOCITY THRESHOLD IS 30. OK?

-28-

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3.2. 6 Screen Selection (Key-in X)

The screen s election options provide the capability of specifyingto which screen the desired output is to be directed. Additionally, charactersize selection is provided to allow enhanced readability of control displays.The default character size is 2 (next to smalle st).

3.2. 6. 1 Queries / Response( s)

Query

X-Y PLOT IS ON SCREEN 1. OK?

TABULAR DATA IS ON SCREEN 2. OK?

CONTROL DISPLAY IS ON SCREEN 1. OK?

Query

CHARACTER SIZE IS 2. OK?

The character size may be altered by responding with an integernumber between one and four inclusive.

A positive (YES) response to the last query will cause the primarycontrol display (Figure 3-1) to appear.

3.2. 7 Begin Processing Section (Key-in G)

There are no queries associated with this section. The "G" commandinitiates the data collection and processing tasks and terminates the controlpr-ogl'-am.

3.2.8 Stop Selection (Key-in Q)

The Quit command causes the control program to terminate thedata collection and processing tasks, and then terminates the controlprogram.

3.2. 9 Magnetic Tape Positioning Commands

The display(s) and commands presented in this paragraph pertainonly to positioning the magnetic tape prior to initiating data collection orto initial positioning and subsequent repositioning of the tape during postmission analysis.

-30-

The tape control display is shown in Figure 3-7. The comro..andsare self-explanatory. Improper entries are discarded and the requestreissued.

-31-

(BLANK PAGE)

-32-

4. DATA COLLECTION

Data collection is performed by the task DCAD which is initiatedby the control progranl upon rece~pt of a HGll command from" the operator.The following description details the operations performed by the DCADtask, and includes details of the calculations performed on the data priorto recordingand/or display.

4. I Data Collection Program Description

.Upon entry and upon completion of the processing of each frarn.e ofdata, DCAD rn.onitors the status of magnetic tape recording. If recordingis requested and in progress, DCAD checks the status of the laser. If itis on, DCAD waits for the start of the next frame. If it is off, DCADinitiates the DR-II interface and theDL-ll interface, then waits for thestart of the next frame. If recording is requested and not in progress,DCAD initiates the data recording. If recording is in progress and hasbeen requested to term.inate by operator command (through the controlprogram), DCAD completes the current record and closes the file, thenwaits for the start of the next frame.

DCAD is event driven; that is, event flags set by other tasks (COP,DR-II driver) cause specific operations to occur. Five event flags controlthe execution of the task. They are event flags 36-40.

Event flag 36, if set, will cause termination of the data collectiontasks. If recording of data to w-agnetic tape was in progress, the recordcurrently being collected will be tagged as the final record and the filewill be closed. DCAD then sets event flag 35 to terminate the PLOT taskand terminates.

If event flag 37 is set, DCAD will pause or suspend execution. Nofurther data from the laser is accepted until event flag 38 is set, whicheffects a resumption of the data collection from the point of suspension.

Event flag 39 is set by the DR-II driver each time the start offrame bit is detected. When flag 39 is set, DCAD inter:l:ogates the DL-lldriver to obtain the current laser orientation in elevation, pitch, andazimuth. This data is stored in the unused portion of the frame prefix forcomparison with the laser orientation from the previous frame.

Event flag 40 is set by the DR-ll driver after the 100th word ofeach frarn.e has been tra...1.sferred. Laser orientation is checked to determinewhether the beanl position has changed from the previous frame. Dataparameters for the frame are then calculated as follows:

o Slant Range (R ) =TLl'JJ.e (l,Ssec) *150 meters/!lsecs

-33-

(4. 1. 1)

If a filter plot was requested, calculations are terminated.Otherwise the calculations proceed as follows:

o Maximum Velocity (defined as that velocity represented bythe filter containing the maximum intensity)(VMX) = C * N (4. 1. 2)

where C is a constant determined by the pulse width.N is the filter number.

o

o

Peak Velocity (defined as that velocity representedby the filter farthest from an imaginary center).(VPK) =C * N F

where C is as defined above.NF is the filter number farthest from the imaginarycenter filter.

Peak Intensity (IPK) = The maximum intensity of thefilters.

(4. 1. 3)

(4.1.4)

o Spectrum Width (ICT) = The count of all filters containingintensities which exceed the intensity threshold. (4. 1. 5)

Compute the zero, first, and second moments, variance, andstandard deviation as follows:

nMO =.~ Ini=l (i)

for those intensities exceeding the thresholds;

(4.1.6)

nMl=~

i=1V In

(i) (i)(4. 1. 7)

MOfor those intensities exceeding the thresholds, and where V .represents the velocity equivalent of the ith filter in meters(l~econdtimes 10;

nM2=~

i =1V

2In

(i) (i)(4. 1. 8)

MO

-34-

for those itensities exceeding the threshold and where v 2(") representsthe square of the velocity equivalent of the ith filter in mefers/secondtimes 10;

2

(4. 1. 9)n

~=l ~i}

. 2where V , In, and V are as defined for equations 4. 1.6, 4.1.7,and 4. 1. 8;

S. Dev = ~VARMO

MO (normalized) = rCT

(4. 1. 9a)

(4.1.10)

where rCT represents the count of filters containing intensity- data.

Next determine the sine and cosine of the true elevation angle (Beta)which is a composite of the sine of the elevation angle (Theta) times thecosine of twice the pitch angle (Phi).

SIN13 = S11~Q * cos20

COSj3 =SQRT (1 - SIN2 (3)

(4.1.11)

(4.1.12)

The values of Altitude (ALI), Ground Range (Rei), Horizontal Projectionand Vertical component of VPK (VPKH, VPKV ) and VMX (VMXH , V1vlXV ) may­now be determined using the following definitions:

0 VPKH =VPK / COS 13 (4. 1. 13)

0 VPKV = VPK * S1i\f (3 (4. 1. 14)

0 VMXH =V:MX / COS(3 (4. 1. 15)

0 VMXV

= V:MX ~~ SIN13 (4.1.16)

0 ALT =Rs * S1i\f(3 (4. 1. 17)

0 R =Rs * COS(3 (4. 1. 18)G

-35-

DCAD now monitors the range to dynamically determine data modeas being either normal scan (ranges increasing each frame out to maximumrange) or time scan (range fixed). Scans are incremented by one of thefollowing:

o In no rmal scan mode:

The range from the current frame is less thanthe range from the previous frame.

The range from the current frame is equal to therange from the previous frame at which time a modechange occurs.

The processed frame count exceeds 200.

o In time mode:

The range of the current frame is not equal to therange of the previous frame at which time a modechange occurs.

If recording has been selected, DCAD checks to see if the databuffer is ready to be written. If so, DCAD writes the data record andawaits the next event flag; if not, it awaits the next event flag. DCAD(through the DR-ll interface) monito rs the status of the manual dataquality bit. If the manual data quality is tagged as "bad, II the DR-IIsoftware will reject the current frame and all subsequent frames untilthe data is again tagged as "good." The check for data quality is performedonce at the beginning of each frame of data. If the data quality is "good" atthe time of the check and then becomes "bad, " the frame is processed asthough it were "good. "

4.2 Data Tape Fo rmat

Table 4-1 lists the format of the data record for magnetic taperecording of the data. The data buffer contains 32 blocks of 120 wordseach, equivalent to 32 frames of data as it is received from the laserplus the calculated data. Each data record consists of 16 blocks. Upontermination of recording, DCAD ensures that an even number of datarecords have been written, facilitating post processing of the data.

-36-

DATA TAPE FORMAT

Record Word Des cription II

1 Tape Header Record1 File Num.ber2-5 Date of Creation6-46 ASCII File Description

2-n Data Records1 Fortran Forward Pointer (link to next block)2 Macro Forward Pointer (link to next block)3 Code word

o = Busy (set by interrupt handler)1 = Completed by interrupt handler2 = Calculations completed3 = Empry (initialized condition only)4 = Last processed block

4 Scan Number5-24 Frame Prefix,5-7 Frame Sync8 Number of integrations/filter polarity/

data quality9-10 BCD Run Number11-12 BCD Frame Count13 Pulse Width/BCD Range (MSB)14 BCD Range (LSB) (

15 Intensity Threshold16 Flag Used for angle comparisons17 Lo Velocity Threshold18 H~ Velocity Threshold19 Elevation Angle20 Pitch _t\ngle21 Azimuth Angle21-23 Time (minutes/ticks)24 Decimal Frame Count (0-200)25-104 Filter Values105 Com.puted Peak Intensity106 N - Velocity Spectrum. Density107 Peak Velocity (m/ sec * 10)108 Peak Velocity (Horizontal Projection)109 Peak Velocit""y (Vertical Component)110-112 Maximum. Velocity (see words 107-109)113 Slant Range (Meters)114 Ground Range (Meters)

Table 4-1

-37-

DATA TAPE FORMAT(Continued)

Record Word Description

115 Altitude (Meter s)116 Normalized Zero Moment117 Normalized First Moment118 Normalized Second Moment119 Variance of Moments120 Standard Deviation of Moments

N+l EOF

Table 4-1(Continued)

-38-

5. DATA DISPLAY

The WISP system includes a versatile plot package (PLOT) whichprovides graphic display of a wide variety of related functions. Informationrequired by the PLOT task to construct the desired X~ Y plot is obtainedfrom the control program via operator input. Figure 3-3 presents theoperator assistance display which describes e~ch of the functions thatmay be plotted and provides additional information regarding the plotparameters.

The plot package allows the selection of two dependent variables.These will be plotted against one or two independent variables~ providedthe respective variables in X and Y have similar axis extents. Onlyone axis in X and one axis i..71 Yare provided.

Figures 5-1 through 5-5 provide samples of the versatility- of theplot package. These functions are generated by the sim.ulation packageincluded in the WISP system.

Figures 5-6 throu·gh 5-8 represent a special plot feature called afilter plot.

5. 1 PLOT Program Description

5. 1. 1 Real-time Proces sing

During real-time operations~ the PLOT program determines theplot type and performs the following based on the plot type;

o For X~ Y graphs - obtain the precalculated data valuefor the function(s) being plotted~ compute X~ Y screencoordinates, and output the graph.

o For tabular data - obtain all precalculated values~ build aformatted character string~ and output.

o For filter plot - quantize the data contained in the 80filters (40 or 20 depending upon pulse width) accordingto Table 5-1~ and output the line.

5.1.2 Post Processing

During off-line processing (data source is TAPE)~ the PLOTprogram performs as above with the exception that all data calculationsare performed anew using thresholds as specified by the operator.

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Fig

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5-8

INTENSITY QUANTIZA TION LEVE LS

Filter Value Character

0-1 • (Period)

2-32 +

33-64 0

65-96 1

97-128 2

129-160 3

161-192 ·4

193-224 5

225-256 6

257-288 7

289-320 8

321-352 9

353-384 *385-416 #

417-448 $

449-480 @

481-512 @

Table 5-1

-48-

6. TAPE DUMP PROGRAM DESCRIPTION

The Tape Dum.p Task (TDUMP) provides the capability to produceform.atted or unform.atted dum.ps of raw laser data from. magnetic datatapes produced by the WISP system. during real-tim.e operations. Thetype of dum.p desired is operator-selectable. Several dum.p types maybe selected at one tim.e to produce a com.prehensive set of data for analysis.

6. 1 TDUMP Detailed Description

6. 1. 1 Program. Initiation and Termination

TDUMP is initiated by the comm.and:

RUN TDUMP (CR)

TDUMP may be terminated at any point in the query/responsesequence by typing:

Q(CR)

TDUMP may also be term.inated during the execution of the dump(if in manual paging mode) by the same method.

6.1.2 Dump Param.eter Selection

TDUMP prOVides several raw data dump form.ats as outlL71ed inTable 6-1. Default selections are as follows:

Dump Format

-File Header sFram.e HeadersFram.e PrefixFilter ValuesCalculated DataFilter Plot

6.1.3 Tape Manipulation

Screen Selection

111112

On entry.. and upon subsequent restarts .. TDUMP requests whetherthe tape should be positioned. The following queries appear:

I U1 o 1

DU

MP

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al

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ad

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ter

Valu

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Data

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ter

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.,

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es

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es

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of

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es

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er

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es

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wit

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eb

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.

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Tab

le6

-1

Query

REWIND?

SEARCH?

Response

"yll or CR cause tape to be rewo'U..1'1d.ITN!! skips rewind.

"yll or CR causes search parametersto be requested."NlI skips search.

The tape may be searched for file number, scan number, or time,or any combination of the three.

6. 1. 4 Automatic Updating

TDUMP allows either manual page updating or auto-paging.Manual updating is achieved by depressing the RETURN key (CR) aftera page has been filled. Auto-paging will cause n pages to be successivelyprinted, where n is an integer entered in response to the query "AUTO­PAGIi'JG? ".

-51-

(BLANK PAGE)

-52-

7. 3-D DISPLAY SYSTEM DESCRIPTION

Six tasks are included in the 3-D display system. The initializationtask (INIT3D) creates a working file on disk. A second task (WF3D) readslaser data from magnetic tape and writes into the disk work file. The datain the work file can be rotated and viewed using separate rotation andplotting tasks (ROTATE, PLOT3D). Hidden line removal is done on thedata in the work file by the file processing task (HLINE). A final task(RESET) is provided to replace hidden lines in the work file in order thatadditional rotations may be done on this data. Figure 7-1 provides examplesof the 3-D plots.

7. 1 INIT3D Detailed Description

INIT3D is run once to create and clear a 2000-block Direct AccessFile on DK!. INIT3D should not be run if this file already exists 65. DK!.

INIT3D is initiated by the command:

RUN lliIT3D (CR)

INIT3D will terminate When initialization is complete.

7.2 WF3D Detailed Description

7.2. 1 Program Initiation

WF3D is initiated by the command:

RUN WF3D (C R)

7. 2.2 Tape Manipulation

On entry, vVF3D requests whether the tape should be positioned.The following queries appear:

Query

REWIND?

SEARCH?

Response

llyn or CR causes tape to be rewound.IINII skips rewind.

llyn or CR causes search parameters to berequested. IINII skips search.

-53-

7. 2. 3 Writing the 3-D File

WF3D will transfer n frames of filter data from the tape to the 3-Dfile, where n is an integer entered in response to the request "ENTER#FRAMES <250."

7.2.4 Termination

WF3D will terminate after the requested frames are written todisk.

7.3 ROTATE Detailed Description

7. 3. 1 Program Initiation

ROTATE is initiated by the command:

RUN ROTATE (CR)

7. 3.2 Rotating Data in the 3 -D File

ROTATE allows 2 axis coordinate transformations to be performedon the data in the 3-D file. First the data is rotated n degrees about thevertical axis, then the data is rotated m degrees about the ho rizontal axis,where nand m are integers entered in response to the request "ENTERROTATION AND PITCH IN DEGREES (213)." All rotations are with respectto the viewing axis and about viewing center.

7. 3. 3 Termination

ROTATE terminates after the coordinate transformation is complete.

7.4 PLOT3D Detailed Description

7.4. 1 Program Initiation

PLOT3D is initiated by the command:

RUN PLOT3D (CR)

7.4.2 Displaying the Data in the 3-D File

PLOT3D scales and displays the data in the 3 -D file on the 4014 CR T.Automatic scaling is selected by responding to the query IIAUTOMATICSCALING? 11 with a "Y" or CR. Alternatively, manual scaling can be

-54-

selected. In this case, PLOT3D will request that a scaling code 1-9 beentered. After scaling is selected PLOT3D will display the scaling codeand plot center. The plot can now be started by entering a "y" or CRin response to the query IIOK? "; any other entry will allow scaling to bere-selected. Figures 7.1 - 7.3 provide samples of 3-D filter plots.

7.4.3 Termination

PLOT3D will terminate after the display is complete.

7. 5 HLINE Detailed Description

7.5. 1 Program Initiation

HLlliE is initiated by the com.m.and:

RUN HLlliE (CR)

7. 5. 2 Hidden Line Remo val

HLINE modifies the data in the 3-D file to remove hidden lines.No operator input is required. During hidden line removal one line ofnumeric values will be displayed each time two frames are com.pared forvisibility. For n frames of data a maximum of (n-~ (n) lines will bedisplayed befo re hidden line removal is complete. During this display,margin control on the 4014 terminal should be turned off so the program willnot stop when the page is full.

7.5.3 Termination

HLINE terminates when hidden line processing is complete.

7. 6 RESET Detailed Description

7. 6. 1 Program Initiation

RESET is initiated by the com.m.and:

RVN RESET (CR)

7.6.2 Restoring Hidden Lines

RESET removes the modifications made by HLINE on the 3-D file.No operator input is required.

7.6.3 Termination

RESET terminates automatically after file resto ration is com.plete.

-55-

APPENDIX A

GLOBAL DATA DEFINITIONS

A-I

~UkrUA~ ~V VOIB-U2-CJKS=f4K7l)Tc=Cl,4], ,

3L.OC~ DATA

-···---NAM-E-·I-.T··E:1t-N~]-.--··'OEt-t-Nlr-i·a·N-·------·----··-~--- --.--_" '.._-._- ..__.- ""'-"...... --...;...;---...;-- .'. . ·)···••·..•..·.· ..,.9RIGINAL PA~----·-

'. . OF POOR QUALITY'OATEOF THE RUN

...:....;-----'-"-- .~~-~--'-'-~--'-'-----:._-------:._--

·----····---u-c·n·f.~qI?1=~~-=~~~2~~~=rf!.~~gIr"'7f-fr~~~~~:.~:!HI·R·'ij'L-r-A$K

NPLFG(3)'9 LJCALfLAG3?OR THE ~L.Qr~rA3K

········?::i:6£aFG(~j· ;ri~; 2;H{aii); ~2it~>;6~? THE ·······~ot~·~·~~iDN TASK

G [. 0 a A 1..

"t---:-----

._.-----------------_._- ----------_._----:-:-_.---_-._~~Q.[RI.__--=1:..;:5 Q) r~ 5 OU RC~_.~ _

1 = LASER

1:;, II '-',,--_

1::::1,... __ _._ ., '::.,:,

I ~.__ , ••••...

";;.:.:!.~---

I ;,;~.

i :

~:-_------

10 = GROuND RAHG~

11 = ALTITUDE12 = ZEROTH ~QgE~r

-------1~3=-.----=-F IRS T MO-;-\.{2,U------,.....--------

.>14 = 5E:GQND I-UM.:.nre_.· '....."'15 =VA RI A.S t.S '. Q} ?tJ tH:~r rs

lay AXIS VARIABLE' .5.££ NXTY? ~aR

19

NYTYP

:~: - .

22 Y AXIS UPPER LIMIT

N10iAK

---NSCTP 23 TYPE OF DATA COLLECTION

.': ....:.: .-.. ,:-:~.-:- ". :.:.: ,'.:;-:'/ ..::;:.~.)~~.~::}:~.:..-:-.:.' ..'.-{:. . . ::",". ;, > ...;-". ::'::,",." :>. :,'.. <.:. '> ".'. ::-: .::.>' :' '. ,\",: '. . :

NSCR?-25SCRE~t~ NuMBER FOR X-yp~jl'···········j>:.l·.··':;:····· PRIio1A.RY , SCREEr! .

:-=-=:-::-:-~_~~---"~~---'-C.-.:...-;.--'--'.:...-;.--:..______._._. .__~_..:::2~=--=S:.=E~q:JNDA.R~L SC RE..~,,-,·f'-'-l__~ _

------- _._--'--:-:--'NSCRT 26 SCREEN NU~8ER fQR TABULAR DAr~

. - :. '-'-".",' ;-. .. ~:..: '.

29 Sf ART TIME OF PLOT - M01D 1MBEGi=--_---"=-"'-_"'--_...:..:-=-.:..-=-.=c:.:c.::--=-=-.:...-=-:;::..=..;:::.--_--=-:..::.=--=-__--'-- _

---------~·--.r=-A(rrrrMArTC----------------­

2 - :J,ANI.Lu.

GF p£.or - W;]<D 2

MTlt'll

NTli12

.-_._---_..._-_.._._---'

SCA:jCJRRSrH35

~~~~tr.'~~=;;"z.)l(lf!·;~i·~~~t1i"<br~~ltl~~~~~Jr1'tiH;V~l;Wf;:-""~!'~~~~~~~~~~;~~~~~~';';~~~~~A~;

:J;:(T~AN II. VI.J1.t)-J2 "'Rr ::>1-]U:..-71 J.,J.ll:"::J······· ..... ~.~.:;::. ,JJ.)

;,...~cOR2=f4K~--U~IC=ff, 4 j ._..,L 2' : =CR:1f

\,----_._--NVl'HS 38 LG VSLOCITY THRESHOLD VlLUE

ORIGINAL -nnE 18.... OF I POOltQOALI~ .

PITCH ANGLE FORCURRSNT PLOT

49 ... RAN G&:tI~ FIK~b»FOR CU~ RSNU_~,...::G::..:=T,--,--,- ~ _

54 LaN FOR MAG rAPE

41NPEtlD

NSTAT(3) 51i······;'iiii:iroL - INAcrIV~·

. ··1> - A.CTIVg<,

NDJ l'ft 39 0=Nar.. tL\ iw T ;( ~..._-_._._-----._------_._..._....__._---._..__.-_._---,._--_.._~ .._-_.~._--_._-~._--_._. __.._-----_._-------_._-

........_...._.~~ ..~~ ..r.J..._.._.. __ ... ?'.L__.~.g.tJ_...fP.R._T_~.R?l.JN.AJ ..... __.. .._.._._._.. .. ..._.... __ .._.._. ._..._._..._.__. ._......

....._------_..._----

----rsTA tr"(4) 59 STA1'US- BLOCK fOR ~lT I/G- _ _-_.~-.__ __ _.__._.._ _ __.--._ _ __ __ __ _ _ _.._ _ _..-.._-_._._._- _ __ _-.------_..-.__ _---_._ -_ .._------_.

LONM.T.._.. _-----_.__..__.•....._._--.._._._ .._._.-_._._-_..--_.•.._-_.__.•.•_--,.__._---_.._----······--···CllNrf;f-·-···----·--s 5--·L:·UN·-··~d!:ClfR:.::II··--·---····--·-··--···-·_----- ..---.-.--..--..--.---

.-- _.. -····-"ii;ftfp~f··-···-·--·-4}-·--yCAG·-··fo--fFf[fifA-r i·..--ffi"~--·ftr?·iT(-·fip·i--fsOPE:N---···· ---- -o .. NOT OPEN

. ····)·li~OPEN.. \

__~N l' A?_E=-__-:5:..=8 r A. PE SELS~'L:: D...ff.. AG0= Nor 3EE.ECrSDL.= SELECTED

-------.. ,

! r-j----

!.: ~ ~,_._---

l~= ....:·---­j--:I ~.:: .

j::i._.__ __ ..__._._i"?~--.-. ---- -- ..-IJ:,IJ:~i--,--­\;J3:: .J3;j; .

i~~~----------j":\__..._-_..._­: :,::.&I ~'----::1r! ~

:",'._._--1'; ;.._-------..---.'~ :

'--- --,------ ._-_.-.....,

1; .----

.. cnnrno["l.:).3% .. _,T1T ~.. ...... m.-'~ .""r.'7 ......~ra. ..,.

2JR7RAN IV lfD1S-02, CJRE=14~{;I' UIC=I:l,4]

FRI Ol-JU~-77

NRS:O 63 DeAD T~P~ WORD

NHCdT_ 54 8~OCK COU~T fJR Tn~ HI)~-------- ---_._-_.__._~---. .

. .. . .. . "'.-",', ,',.. ,.

NHTI;~t ······\·65·TiMK/BETliEKtrBLQCKS (FOli HIDE' tASK): ' : ••':.:~ ·0,._ •

: ,. ... .

: :,..... :~:...-::'.,.<,:_.

: .{:':,' •.... :: .

72 . SECOND P~Ol FUNC~ION X-lXIS rvp~=-------------73 SECOND PLOT FUNCTION ~-AXIS TYPE=-==--=--~.=:-_--------74 Y1NUA~ ANGLS SE~EcrION ?~AG

. NBLJK(3840). 121 BLOCK TABLE

.;;:,i.;X'3·::X·, , :·.6';/.----_. _._------~------------.--.-------.--~-----

FJ R M: .A r : .:,;:iDATiA. . B t:.oc K

.•·.····~·~tiiri~\· ~:D:¥:¥~ET··?:i·· ·;:?~;.:/«:~AR I··A·B··I::~ .. J!':;:•...•.'.

-HEAD--eRD-A-TA'--.;...~-------------------------------

.. -:._'::.'.'.'; .

.' ..... ,~< ... ,.;'" .:., ::':::.:'. -:...::--/,,-,-::. .-

. . .. '. ~~ ..

.__.-._-_._ ..- ._--..-.-. ----'

o = IN USE BY INTE~Rapr HANDLER~--------------"lc-=--=c::..':a=-?:-=i!?-=-['· ETE0 BY I ~ TS-=-R-=-R-=-u.::.p-=-r==H=1\=:::-N.:..:O-L-E-R------

------- ... = COM?L-ErE:O-a-Y cjrCSCTION TASKEi-iPTY BLOCK

·····>5··· FR.iUJESYNCHFRAHE SY~JCH

NG.IMTEGRATIJNS(BCD)!?)Ll~ITfSSNSE/DATA-QUALITv..__t.tGJL1BH1Q.f::.R - f IR;iI_?]J E:

~L(J1L~U ~f8 ER .- NE~L_~__~Y~~ :: S:c..-__. ,--__

.... A-S".'. C •

FRAHE-CAtCPLOT-REstART

-'l>LIjt=si'o?

••

---._.__._------_.-

10 f~A~E :OO~T - fIRST ~~~~

11 fRA~~ COUNT - SECJ~D iA~?

__~1::..2 ? J ~_S ~_ \~ I D~ ~(gAt~_~§J :~ ?.~L .__--:- ... ---..--- _13. RA~GE~NEXf2 QIGITS'14 INTENSITY THRESHOLD

________________-=lo5~-·.0.-.-,--,-.....;.....;.A.:....U GLE' E QU ;\'=-L=··o.-.··F:.--L=--=A.:...G --'--'-

15 LO VELOCITY THRESHOLD.--.-.--..-.-----"--'-""-I1"-'-'-'--"HI"VjELoCITY-THRE~fH6LD--"'----"'------"-'---'-··-·--··-····-·--····-·---·1""S··-·----ET:-E-V-XT]:·014··-·---·-······-··-······--·······---··----.-.-.----.-..- ..-....---.

19 PIrCH' --.--20 . A.lnWTff" ..21 ' ·.rrM~ ~uINur~~ .. '. __ •• ~ .. !"t .!..._. t:;=-~~ . ~.

...._ _._.. _._._~.?. ._r.J}:!~._ ..::. J~J.G.K:? _ _.. _ _ _ __ __ . _

._ __ . .f_~.~.._ ...f_RAM..;;_.J~.lJ..t1JtE.:.R.._J·t!__~_~A;j_.__ _._ _ _ _ .. .. _

>i·.··.•.· ...• ·•.·· .• 105 . <)iI-Vi::LDCIT'l .SPECTRU~4 D~NSlrY......•. ········:106?E:AKITELJCIry '.. .'

'107 pgA. K VE LOCI'l~ - HDRIZO:-IrALPROJ:::CTIONlOB PEi\K-VELDCITV- VERTIcA.:' CJ'J,?JI{SIJT

···-----·---·-r09-···--·--.-\fI\·:ft~f~r~c-V-ECtrc"I-Tr--- - - ..-------- ----.------------'--'--'··-··---~--~---·"·--·f'I-o- t-1-A~xj~-M·fjI~---V·E·L·tJc-I··fy-·-=-·--li·dR-f·l5·"flTIl--PR·QJ-ECT·t·O-~-·..-----.-..--

I1t< MAXINlJMVELOCI1'Y- VE:RTICAL CJt'i?JNENT.i./i:·112 Jjii sr.. A.tl!RANGE.>i·.····· ....

.. ......, .'.113 GROtlND~.--"R~A='N:::...~:::...•., =:.s0.-.';..;'.-'-'-'-'---'---~,_'---'---=.;..; ---"-......;..'----'-'-_...:..-

114 A.~TITLJDE

=~_=-~==-=~I~]~==~4I[Qj}1.]QB:~_.~J~. ._.. 116 FIRsrMO~ENT

i.>< •• 111..·.·>·;SE:CO~O.MOMENl' .....••...............ilIa }(}vARIANCE: ·.. DF ~1nHENrs

'. ······)119 ··>srA~OA.RODEVIA.TIJN

; i

<I

-t__, ~._.

>~--

r o. -"'., .Tu- .. .. -iw-:"'..-

fRI Ol-JUL-77V018-02---UIC=[1,4J

36 DCAD-STD? COP DC~D

37 DCAO-?~US~ COP OGAD38 O:~D-R~srA~r DeAD----39~-RAM~ - STAP=-,=r-.-.--=::-=-=:--:-~-,...--'----=.,..--,...------:---,...---

.41 FR1\:1E>-£~W

. 4-1 . HID E:"'RON .

0004

IN~ "PAGE IS .

-----_...._-_._---

~---_.__._--_._----------'--------'-------------------

. '.

. :.'. :.. , :"::.:....•.. '. '" ':.:". "': .. '

Co.'::

:.....

' .. : :., '.:.' ".c".:":

.. ':

' ...

._._ _.•.._..__ _--_ _.._ --_ _ .._--_._---- ------_.._._---------

---_._._......•..._---_._--A-7_. __ .....__._-_ ..._.._---_._--_....:.::.....:...--------------

(BLANK PAGE)

A-8

APPENDIX B

(To Be Supplied)

B-1

Page Intentionally Left Blank