Abstract
In view of the requirement of automatic CFAR (Constant False Alarm Rate) detection of pulse radar signal (indicate that the radar signal modulated by periodic rectangular pulses) in the design of radar reconnaissance receiver, a pulse radar signalpsilas DFT (Discrete Fourier Transform) spectrum detection algorithm with the function of CFAR is presented. By researching the threshold generating algorithm of pulse radar signalspsila spectrum detection under clutter background, the paper presents a threshold generating algorithm based on the structure of CMLD (Censored Mean Level Detector) CFAR detector, and illuminates the detection probability and false alarm rate of the algorithm under the nominal factor T in detail. At last, confirms the validity of the algorithm.
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