LOCATION FINDING METHOD OF NARROW-BAND RADIO SIGNALS OF SHORT-WAVE RANGE

摘要

FIELD: radio engineering.;SUBSTANCE: narrow-band radio signals of short-wave range, each of which lies in the appropriate k (k=1,…K) frequency subrange of the specified interval of K frequency subranges, are received with each radiator of linear antenna array with independent receiving radiators elevation plane during the observance interval; received signals are separated at the inlet of each receiving radiator by means of K narrow-band filters, correlation matrix is calculated as per the received signals in each k (k=1,…K) frequency subrange, each of k correlation matrixes are decomposed as per own signal and noise vectors, own directivity patterns of array are determined in each k frequency subrange as directivity patterns in mode of excitation of independent receiving radiators with the appropriate complex-conjugated proper vectors, and directions of input and complex amplitudes of received signals in k frequency subrange are determined by solving the systems of equations.;EFFECT: high accuracy of location finding of signals with completely unknown structure and parametres and determination of their complex amplitudes at reception of those signals via multi-beam radio routes with essentially various amplitudes and at low Signal, Interference, Noise ratio.;5 cl, 9 dwg