Performance Analysis of Mean Level CFAR Detector in Pearson Distribution Clutter

The problem of constant false alarm rate(CFAR) detection under Pearson distribution clutter is studied in this paper.We derive the exact elementary expressions of probability of false alarm for cell averaging(CA)-CFAR,greatest of(GO)-CFAR and smallest of(SO)-CFAR in homogenous background,and prove that these detectors are also of CFAR.The performance of these detectors are evaluated both in homogeneous and non-homogeneous clutter.The results show that the SO-CFAR has the best detection performance against uniform clutter background and multiple target environments,while the GO-CFAR has the best control ability of false alarm against clutter edges.