Performance of MAX family of order-statistic CFAR detectors

1 January 1991

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems

Vol. 27 (1) , 48-57
https://doi.org/10.1109/7.68147

Abstract

The MAX family of constant-false-alarm-rate (CFAR) detectors is introduced as a generalization of the greatest of CFAR (GO-CFAR) or MX mean-level detector (MX-MLD). Members of the MAX family use local estimators based on order statistics and generate both a near-range and a far-range noise-level estimate. Local estimates are always combined through a maximum operation; this insures false-alarm control at clutter edges. At the same time, order-statistic-based estimators result in a high-resolution detector. A complete detection analysis is provided for SWII targets and a reference channel contaminated by large outliers. Results are presented for the MX censored MLD (MX-CMLD) operating in clutter. The MX order statistic detector (MX-OSD) based on only a single-order statistic per window, is analyzed, and curves showing the required threshold, CFAR loss, optimum censoring point, and signal-to-noise ratio (SNR) loss in the presence of outliers are given. Simulations are used to compare the dynamic responses of various MX-OSD detectors in a clutter and a multiple-target environment.

Keywords

This publication has 17 references indexed in Scilit:

Detection analysis of the MX-MLD with noncoherent integration
IEEE Transactions on Aerospace and Electronic Systems, 1990
Performance of max-mean level detector with and without censoring
IEEE Transactions on Aerospace and Electronic Systems, 1989
Performance Analysis of the Censored Mean-Level Detector
IEEE Transactions on Aerospace and Electronic Systems, 1986
Radar CFAR Thresholding in Clutter and Multiple Target Situations
IEEE Transactions on Aerospace and Electronic Systems, 1983
Analysis of Some Modified Cell-Averaging CFAR Processors in Multiple-Target Situations
IEEE Transactions on Aerospace and Electronic Systems, 1982
Detectability Loss Due to "Greatest Of" Selection in a Cell-Averaging CFAR
IEEE Transactions on Aerospace and Electronic Systems, 1980
Range Resolution of Targets Using Automatic Detectors
IEEE Transactions on Aerospace and Electronic Systems, 1978
Adaptive Detection Algorithms for Multiple-Target Situations
IEEE Transactions on Aerospace and Electronic Systems, 1977
Mean-Level Detection of Nonfluctuating Signals
IEEE Transactions on Aerospace and Electronic Systems, 1974
Detection Performance of a Mean-Level Threshold
IEEE Transactions on Aerospace and Electronic Systems, 1968