Performance analysis of a new greatest of selection CFAR detector

Author

Xiangwei, Meng ; You, He ; Dajin, Lu ; Yingning, Peng

Author_Institution

Dept. of Electron. Eng., Naval Aeron. Eng. Acad., Yantai City, China

fYear

1996

fDate

8-10 Oct 1996

Firstpage

401

Lastpage

404

Abstract

In this paper, a new greatest of selection CFAR detector (OSTMGO) based on order statistics (OS) and trimmed mean (TM) is proposed. It takes the greatest value of OS and TM local estimations as a global noise power estimation, and it also uses the automatic censoring technique proposed by He You (1994). Under the Swerling II assumption, the analytic expressions of P_fa, P_d and ADT of OSTMGO are derived. By comparison with other schemes, the results show that the detection performance of OSTMGO is good both in homogeneous background and in nonhomogeneous environments caused by strong interfering targets and clutter edges; particularly in the clutter edges situation, the peak of false alarm rate of OSTMGO decreases an order of magnitude more than that of GOSGO, while the sample sorting time of OSTMGO is less than half of that of OS

Keywords

radar clutter; radar detection; radar receivers; statistical analysis; OSTMGO; Swerling II assumption; automatic censoring technique; clutter edges; detection performance; false alarm rate peak; global noise power estimation; greatest of selection CFAR detector; homogeneous background; nonhomogeneous environment; order statistics; sample sorting time; strong interfering targets; trimmed mean; Background noise; Clutter; Envelope detectors; Helium; Noise level; Performance analysis; Radar detection; Sorting; Statistics; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 1996. Proceedings., CIE International Conference of

Conference_Location

Beijing

Print_ISBN

0-7803-2914-7

Type

conf

DOI

10.1109/ICR.1996.574477

Filename

574477