GPS Navigation System October 12, 2010 Timothy Davis Advisor:
Frank Hludik
Slide 2
GPS Navigation System Additional independent study to accompany
senior project to include: In depth explanation of the different
aspects of GPS and how they work Factors that could affect the
usability and accuracy of the GPS system The Global Positioning
System
Slide 3
Space Segment 30 satellites that transmit position and time
Satellites are in non-uniform position and time 6 are visible from
any point on earth Continuously broadcasting messages to GPS
receivers on earth GPS Navigation System Global Positioning System
Wikipedia
Slide 4
Control Segment World-wide Maintain satellites proper orbit
Upload navigational data to satellites Monitor health and status of
satellites Adjust Orbit Of Satellites GPS Navigation System GPS
Explained: The Control Segment
Slide 5
User Segment Most receivers can use at least 12 satellites
simultaneously Receives navigation messages from satellites
Calculates the transmission time of navigation messages Receivers
use data to calculate position, time, speed and direction of travel
GPS Navigation System Global Positioning System Wikipedia
Slide 6
GPS Navigation System Problem Statement Design and implement a
compact, low power hand held GPS Navigation System for use on the
University Of New Hampshire Campus
Slide 7
GPS Navigation System Design Objectives Indicate current
location on a map of the UNH Campus Display current date and time
Display the number of satellites it is using to calculate location
Display the speed and direction of travel Display current altitude
Hand held (small, battery powered)
Slide 8
GPS Navigation System Direction N.W. Speed 5 mph Satellites 4
GPS Map Of The University Of New Hampshire Elevation 200m Time
09:37:05
Slide 9
GPS Navigation System
Slide 10
Slide 11
Time LineSeptemberOctoberNovemberDecember
613202741118251815226132027 Proposal Design Order Parts Implement
LCD Controller Implement GPS Controller Implement Memory Controller
First Semester Timeline
Slide 12
GPS Navigation System Time LineJanuaryFebruaryMarchApril
3101724317142128714212841118 Design Mapping Method/Coordinat e
System Implement Mapping Method/Coordinat e System Integration
Testing Present At URC Second Semester Timeline
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