A generalized likelihood ratio test detector for moving targets in clutter

Author

Kirsteins, Ivars P. ; Nikitakos, Nikitas V.

Author_Institution

Naval Undersea Warfare Center, New London, CT, USA

fYear

1996

fDate

24-26 Jun 1996

Firstpage

16

Lastpage

19

Abstract

A generalized likelihood-ratio test (GLRT) detector is derived for detecting a space-time signal in the presence of unknown subspace interference and unknown target Doppler. The near optimality and constant false alarm rate (CFAR) property of the GLRT is shown by the relationship to the uniformly most powerful invariant (UMPI) test using a simple approximation. Examples are presented comparing the performance of the proposed detector against the UMPI test. The ROC curves indicate that the GLRT detector compares favorably to the UMPI detector

Keywords

Doppler effect; approximation theory; clutter; interference (signal); signal detection; CFAR; GLRT detector; ROC curves; UMPI detector; UMPI test; approximation; clutter; constant false alarm rate; generalized likelihood ratio test detector; moving targets; optimality property; space-time signal; subspace interference; target Doppler; uniformly most powerful invariant; Clutter; Colored noise; Delay effects; Detectors; Interference; Matrices; Sensor arrays; Signal detection; Testing; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal and Array Processing, 1996. Proceedings., 8th IEEE Signal Processing Workshop on (Cat. No.96TB10004

Conference_Location

Corfu

Print_ISBN

0-8186-7576-4

Type

conf

DOI

10.1109/SSAP.1996.534809

Filename

534809