If x(n) is the input signal of a system with impulse response h(n) and y(n) is the output signal, then the auto correlation of the signal y(n) is:
A. rxx(l)*rhh(l)
B. rhh(l)*rxx(l)
C. rxy(l)*rhh(l)
D. ryx(l)*rhh(l)
Answer:A
If x(n) is the input signal of a system with impulse response h(n) and y(n) is the output signal, then the auto correlation of the signal y(n) is:
A. rxx(l)*rhh(l) B. rhh(l)*rxx(l) C. rxy(l)*rhh(l) D. ryx(l)*rhh(l)
Explanation: ryy(l)=y(l)*y(-l)