4. Consider the following discrete-time signal: x[n 2 1 2 n → 1 -1 Carefully draw...

Question

Question

4. Consider the following discrete-time signal: x[n 2 1 2 n → 1 -1 Carefully draw the following signals. Label the axes and a

Answer 1

Answer #1

(a) x(2n-2) --> shift x(n) right by 2 uints and then down scale the signal by 2.

(b) x(n-1) is the right sided sequence. Hence the multiplication of x(n-1)u(-n) =0.

x(n)+(x(n-1)u(-n))= x(n)+0=x(n)

(c) Fold x(n) and multiply the amplitides by -1.

x(n) x(2n-2) 2 N 1.5 1 x(n) (u) ex 10 1 0.5 -14 - 1 0 2 2. om n n x(n)+x(n-1)(-n) -X(-n) N xb(n) (u)x O -14 1 3 o -1 N n n

Answer 2

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