METHOD FOR CORRELATION PROCESSING OF SIGNALS, REFLECTED FROM FAST-MOVING TARGETS

摘要

FIELD: special radio engineering, possible use in systems for detecting and tracking moving objects.;SUBSTANCE: it is known, that movement of object causes Doppler dispersion, making it harder to detect, due to decrease of signal/noise ratio at system output. In accordance to invention, emitted signals are supposed to be transformed in accordance to rule s(t)→s(arctg(t)} in time span. It is determined, that such signals are invariant relatively to acceleration of target, while speed causes only frequency shift of signal without distortion thereof. For correlation processing of received signal, echo signal is returned into original linear scale, realizing operation of interpolation of counts of received signal in accordance to rule s(arctg(t))→s(t)) in real time scale.;EFFECT: response of system, realizing described processing method, is stable during detection and tracking of targets moving at high speeds.;1 dwg, 1 app