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DSP--Introduction

By Ashik
 What is Signal?
 
•A signal is a physical quantity which varies with respect to time, space and contains information from source to destination.

•Example: Audio signal, video signal, speech signal, image signal, communication signal, geophysical signal, radar signal, medical signal and musical signals.













 Signal Processing

•Signal processing deals with operations of signal or analysis of signals, or measurements of time-varying or spatially varying physical quantities.





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