Correlation Estimation in Noise-Modulation Systems by Finite Time Averages
T.S. George · IEEE Transactions on Instrumentation and Measurement · 1965
Application of noise-modulated systems frequently involves measurement of autocorrelation by finite time averaging. Formulas are developed for the error involved in such measurement for case of frequency modulation by noise. Comparison is made with the case of amplitude modulation. Optimum filters for averaging are calculated and their performance compared in one case with that of the ordinary time average.