# Question: Is the following function a valid discrete time autocorrelation function

Is the following function a valid discrete- time autocorrelation function? Justify your answer.

**View Solution:**## Answer to relevant Questions

A discrete random sequence is the input to a discrete linear filter h [n]. The output is Y [n]. Let Z [n] = X [n+ i] – Y [n]. Find E [Z2 [n]], in terms of the autocorrelation functions for X [n] and Y [n].and the cross- ...A certain LTI system has an input/ output relationship given by (a) Find the output autocorrelation, RYY (τ), in terms of the input autocorrelation, RXX (τ). (b) Find the output PSD, SYY (τ), in terms of the input PSD, ...The definition for the noise equivalent bandwidth of a filter was given in terms of the transfer function of the filter in Definition 11.1. Derive an equivalent expression for the noise equivalent bandwidth of a filter in ...(a) Determine the impulse response of the filter matched to the pulse shape shown in the accompanying figure. Assume that the filter is designed to maximize the output SNR at time t = 3to. (b) Sketch the output of the ...The sum of two independent random sequences with autocorrelation functions is input to an LTI filter. (a) Determine the Wiener smoothing filter. That is, find the impulse response of the filter which produces an output ...Post your question