An autocorrelation scheme using a complex approach (phase detectors) with N multiplier-accumulators for N frecuency points

Abstract

The purpose of this note is to present a scheme which permits implementation of both systems, therefore, allowing one to trade bandwidth for frequency resolution, but using only one frequency conversion scheme, for both: the simpler complex conversion (phase detection) scheme. It involves only the introduction of a time multiplexer between the complex digitized signals and a real correlator.