Signals And Systems 
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Contents
Chapter1 Classification of Signals and Systems 11 to 1106  11 
Chapter4 Analysis of Discrete Time Signals 41 to 4120  41 
pter 5 Linear Time Invariant Discrete Time System 51 to 5144  51 
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Common terms and phrases
amplitude spectrum arg(Cn cascade causal system circular convolution comparing above equation computation Consider Continuous Time Systems defined definition delayed Determine difference equation differential equation direct form discrete time signal discrete time system DTFT energy signal equation becomes equation with equation Example exponential Fourier series Find finite formI Fourier series given by equation H(co Hence above equation Hence the system impulse response initial conditions inverse system linear combination LTI system Madras University multiplication noncausal obtained output depends periodic signal phase spectrum plot point DFT pole power signal present input Putting ramp function rectangular pulse represented sequence x(n shift invariant shift variant shifting property shown in Fig shows signal x(t Signals and Systems signum function Solution summation system function theorem transfer function unit circle unit impulse unit ramp unit sample response unit step function values written x(ri zero