Comparative analysis of efficiency indices of ways to reduce the frequency determination ambiguity emerging at joints of channels in radio intelligence matrix receiver

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Authors: Podstrigaev A. S., Lihachev V. P., Gapeenko K. V.

Annotation: The results of comparative analysis of the efficiency of facilities reducing the frequency determination ambiguity emerging when the signal hits at the joint of adjacent frequency channels of the matrix receiver are presented. Two ways of reducing the frequency determination ambiguity are investigated: separation of intermediate frequency channels at groups with separated processing of their output signal and usage of the device taking extra measurements of frequency at joints of adjacent frequency channels. Estimation methods based on values of false-alarm probability, ambiguity band and the gain in signalto-noise ratio are proposed.

Keywords: matrix-parallel receiver, matrix receiver, radio monitoring, radio intelligence, receiver design method, wideband receiver, frequency plan