1.

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. r<sub>xx</sub>(l)*r<sub>hh</sub>(l)
B. r<sub>hh</sub>(l)*r<sub>xx</sub>(l)
C. r<sub>xy</sub>(l)*r<sub>hh</sub>(l)
D. r<sub>yx</sub>(l)*r<sub>hh</sub>(l)
Answer» C. r<sub>xy</sub>(l)*r<sub>hh</sub>(l)


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