False Alarm Analysis of the CATM-CFAR in Presence of Clutter Edge

Abstract

This paper presents a false alarm analysis of the cell-averaging-trimmed-mean constant false alarm rate (CATM-CFAR) detector in the presence of clutter edge. Structure of the CATM-CFAR detector is described briefly. Detection curves for optimal, CATM, cell-averaging (CA), trimmed-mean (TM) and ordered-statistic (OS) CFAR detectors has been analyzed and compared for desired probability of false alarm and determined size of the reference window. False alarm analysis of the CATM-CFAR in case of clutter with constant clutter-to-noise ratio has been conducted. Also, comparative false alarm analysis of CATM and some of well known CFAR detectors is carried out and results are presented.

Keywords

• CFAR detection
• false alarm rate
• clutter edge