DETECTION METHOD OF MULTIPLE NARROW-BAND RADIO SIGNALS IN BROAD BAND OF FREQUENCIES

摘要

FIELD: radio engineering.;SUBSTANCE: essence of detection method of multiple narrow-band radio signals in broad band of frequencies consists in performance of analogue-to-digital conversion of broad-band input process (BIP), accumulation of complex BIP readouts and in-series formation of samplings with BIP readouts, calculation of amplitude spectrum of formed sampling with BIP readouts, calculation of detection threshold value for each component part of amplitude spectrum as sum of smoothed estimate of spectrum in weighing window sliding along frequency axis and function from their mean-square deviation, comparison of amplitudes of spectrum component parts with detection threshold value, storage of comparison results of amplitudes of spectrum components with detection threshold value, taking the decision on detection of radio signals in investigated frequency band on the basis of majority processing of stored comparison results of amplitudes of spectrum components with detection threshold value, which were obtained at analysis of six in-series taken samples with BIP readouts, and output of detection results.;EFFECT: reducing the influence of signal-interference environment.;7 dwg