Signal detection for cognitive radar

Author

Zhang, Xiaobing ; Cui, Chunyan

Author_Institution

Electron. Eng. Inst., Hefei, China

Volume

49

Issue

8

fYear

2013

fDate

April 11 2013

Firstpage

559

Lastpage

560

Abstract

The problem of signal detection for cognitive radar (CR) is considered, and a closed-loop detection system is proposed to detect the extended target in the presence of signal-dependent interference. In the system, the estimator of target impulse response (TIR) and waveform design are used to improve the detection performance of CR, and the estimate of TIR is also used for designing the matched waveform. In addition, in order to improve the reliability of detection, the two-step process which is called estimation before detection is proposed. Simulation results indicate that the proposed system performs better than the traditional radar system which used the fixed waveform.

Keywords

closed loop systems; object detection; radar detection; radar interference; reliability; transient response; waveform analysis; CR detection performance improvement; TIR estimator; closed loop detection system; cognitive radar; detection reliability improvement; estimation before detection process; extended target detection; matched waveform design; signal detection; signal-dependent interference; target impulse response estimator; two-step process; waveform design;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2012.3345

Filename

6527559