SYSTEMS AND SIGNALSA.Arivumathi115012013883

SIGNALS

It carries some information.

1

A function of one more

independent variable

2

Any physical quantity various

with time,space.

3

TYPES OF SIGNAL

One dimensional signal1

Two dimensional Signal2

Multi dimensional Signal3

CLASSIFICATION OF SIGNAL

2

Even and odd

1Periodic and non periodic

3

Energy and power

4

Deterministisc & random

5casual and non casual

STANDARD SIGNALS

5 Sinusoidal

4 Exponential

3 Unit Ramp

2 Unit impulse

1 Unit Step

DISCRETE TIME SIGNAL

DTS•Not

continuously with respect to time• only at

specific time instant

CONTINUOUS TIME SIGNAL

• Continously with respect to time

1

• Denoted by “t”

2

• Example[sincos ]

3

SYSTEMS

1 Set of components connected together

2 Produce output with response to input

CLASSIFICATION OF SYSTEM

Linear and Non- linear

Time variant &Invariant

Causal and Non-causal

Static and Dynamic

Stable and Unstable

1

2

3

4

5

APPLICATIONS OF SIGNALS AND SYSTEMS

speech

1

Automotive

2

Medical

3

control system

4

Image processing

5

THANK YOU