Diagonally loaded space-time adaptive detection

Author

Liu, Weijian ; Xie, Wenchong ; Wang, Yongliang

Author_Institution

Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

Volume

2

fYear

2011

fDate

24-27 Oct. 2011

Firstpage

1115

Lastpage

1119

Abstract

In this paper, the concept of space-time adaptive detection (STAD) is presented. The diagonally loaded adaptive matched filter (DL-AMF) and the diagonally loaded adaptive coherence estimation (DL-ACE) are analyzed. Their performance is investigated, and the asymptotically analytical expression of the probability of false alarm (PFA) and the probability of detection (PD) are derived. Compared to the AMF and the ACE, the PD´s of the DL-AMF and the DL-ACE are improved dramatically, especially when the sample support is limited.

Keywords

adaptive estimation; adaptive filters; coherence; matched filters; probability; signal detection; space-time adaptive processing; DL-ACE; DL-AMF; PFA; STAD; asymptotically analytical expression; diagonally loaded adaptive coherence estimation; diagonally loaded adaptive matched filter; diagonally loaded space-time adaptive detection; probability of detection; probability of false alarm; Clutter; Covariance matrix; Detectors; Equations; Mathematical model; Noise; Statistical distributions; Adaptive detection; STAP; diagonal loading; space-time adaptive detection (STAD);

fLanguage

English

Publisher

ieee

Conference_Titel

Radar (Radar), 2011 IEEE CIE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8444-7

Type

conf

DOI

10.1109/CIE-Radar.2011.6159748

Filename

6159748