A Method for Threshold Setting and False Alarm Probability Evaluation for Radar Detectors

A threshold setting and false alarm probability evaluation method is proposed for radar detectors for which an analytical relationship between thresholds and false alarm probabilities is impossible or diffi-cult to obtain due to complicated detection schemes or non-Gaussian noise and clutter. Importance sam-pling is performed to increase the sampling efficiency of low-probability samples. Then, the weighted piecewise parabolic ( P 2 ) interpolation method is used to rapidly plot the relationship curve between the threshold and the false alarm of the detector, with a low storage requirement and high accuracy. The pro-posed method effectively enhances the detector threshold computing scale and addresses the statistical verification of the false alarm probability for radar detectors with a low false alarm rate.(c) 2023 Published by Elsevier B.V.