Question: 1) What does initial rest mean in causal LTI? 2) x[n] x[n-1] x[n-2] x[n-N] D D D b b2 bn w[n] + + +

1) What does initial rest mean in causal LTI? 2) x[n] x[n-1] x[n-2] x[n-N] D D D b b2 bn w[n] + + + -a1 -a2

1) What does initial rest mean in causal LTI? 2) x[n] x[n-1] x[n-2] x[n-N] D D D b b2 bn w[n] + + + -a1 -a2 -aN D D D n The model of Nth order difference equation is given above. Show this Nth order difference equation with Simple delay. y[n] y[n-1] y[n-2] x[n-N]

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