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A Novel Algorithm for Moving/Fixed Target Discrimination in 77 GHz Automotive Radars

In this paper, a novel algorithm is presented for moving vehicles detection using 77 GHz automotive radars. Unlike previous methods, that use FFT estimators with CFAR based threshold detection to detect moving and fixed targets, we use the CFAR method combined with an adjustable coefficient based on the FFT algorithm output moments. It is found that, low false alarm rates are achieved using the proposed method. Furthermore, the proposed method is insensitive to the data window size in time domain as well as its low complexity relative to other methods.