ALGORITHM FOR OPTIMAL DETECTION OF A MOVING TARGET ON-BOARD RADAR
Annotation
The results of the synthesis of an algorithm for optimal signal detection, consisting in alternating conversion of received signals in time and compensation of the interference signal during accumulation in the filter, are presented. The physical basis of the synthesis is the differences between the time-frequency characteristics of the signals reflected from the DC and the Earth’s surface, manifested in the time shift of the maxima of the useful and interference signals with equal Doppler frequency shifts. The processing algorithm consists in comparing the module of the weight integral with the threshold. A block diagram of the optimal detector has been developed. The dependences of the amplitude-normalized weight vector of optimal processing over time are considered. An assessment of the potential detection characteristics of moving targets has been carried out. It is shown that when detecting low-speed moving targets, there are optimal scanning speeds at which the probability of correct detection is maximum.
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