A Theory andMethod forCorrelation Analysis ofNonstationary Signals
Walter W. Wierwille · 1965
vrelation function, whenonly onepair ofsignals isavailable fortheOfanexactly detectable deterministic spectrum orcorcorrelation analysis. Theuseoftheensemble approximation ap-relation function; butthedetected information isof proach allows thedemonstration ofthetwouncertainties that alwayslimited value, since itcannotberelated tonetwork or accompany correlation analysis ofnonstationary signals. Moreover, optimization theory. this ensemble approximation approach makespossible thedevelop-Inthis papertheunderlying philosophy, whichisrementofamathematical synthesis procedure which specifies theoptimalformofarealizable correlation analyzer fornonstationary sig-lated tothatdescribed in[1], isthatofapproximating nals. Thesynthesis procedure isdescribed indetail for aspecific buttheensemble correlation function byprocessing asingle representative case andthen issummarized for other cases. pairoftimewaveforms. However, inthispaper, an Anexperimental study hasbeenperformed which verifies theexactcorrelation analyzer synthesis procedure isdetheory anddemonstrates itseffectiveness. Themethodisparticularly bymethods ofapplied mathematics. Thetheory suitable foranalog andhybrid simulation. veloped issubsequently verified byexperiment.