The probability density function for the output of an analog crosscorrelator with bandpass inputs (Corresp.)
F. Stremler, Taylor Austin Jensen · IEEE Transactions on Information Theory · 1970
A general solution is obtained for the probability density function of the low-pass output of a crosscorrelator with bandpass inputs. The input signals are sinusoidal with arbitrary amplitudes and phases, and the noise inputs are Gaussian and uncorrelated. An approximation to simplify the necessary calculations is developed and examined.