METHOD OF PROCESSING RADAR INFORMATION WITH LOW PROBABILITY OF BEGINNING OF FALSE ROUTES Russian patent published in 2016 - IPC G01S13/56 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention can be used to reduce probability of initiating of false routes at moving targets (MT) in presence of signals from powerful local objects (LO). Technical result is achieved by fact that method involves combined spatial-time and routing processing using obtained from space-time processing information during initiating and tracking routes, space-time processing is supplemented with operation generating false alarm (FA), which marks uncompensated signal from local object (LO), wherein LO feature is also used in secondary processing at initiating and tracking of routes. Operation of moving targets (MT) detecting includes formation of detection threshold and comparison with MT-signal amplitude, and operation for FA-feature generating involves selection of maximum amplitude of MT signal, optimum processing of LO-signals, suppression of FA-signals and determining of FA-feature. When determining FA-feature accumulation of data volume takes place, which corresponds to half of azimuthal packet multiplication factor depending on stability of transceiving channel, and comparison of delayed maximum amplitude of MT-signal with level of residue from LO-signal. FA-feature receives nonzero value in case of excess residue from LO-signal above delayed maximum amplitude value of MT-signal and zero if otherwise. Then formed feature, which is result of comparison is used in route processing, which performs accumulation of values for spatial coordinates, radial speed and FA-feature on several reviews. At that, FA-feature informs route processing system, that target with non-zero value of that feature at route initiation is to be eliminated from consideration, while during tracking is to lower target selection priority (in presence of several targets).

EFFECT: reduced probability of false routes initiation at moving targets (MT) in presence of signals from powerful local objects (LO) while reducing cost of method and reduction of time for making decision on rejecting of false route.

2 cl, 2 dwg