4 For the sequences x1(n) = cos -n. x2(n) = sin -п, 0

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4 For the sequences
27
x1(n) = cos y n,
0 <n< N - 1
x2(n) = sin
-п,
determine the N-point:
(a) Circular convolution x1(n) x2(n)
(b) Circular correlation of x1 (n) and x2(n)
(c) Circular autocorrelation of x1(n)
(d) Circular autocorrelation of x2(n)
Transcribed Image Text:4 For the sequences 27 x1(n) = cos y n, 0 <n< N - 1 x2(n) = sin -п, determine the N-point: (a) Circular convolution x1(n) x2(n) (b) Circular correlation of x1 (n) and x2(n) (c) Circular autocorrelation of x1(n) (d) Circular autocorrelation of x2(n)
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