Axis rotation MTD algorithm for weak target detection

Weak targetʼs range migration often happens for long time integration in radar detection. To compensate for linear range migration and detect weak targets effectively, a novel coherent integration detection algorithm, axis rotation moving target detection (AR-MTD), is proposed. The AR-MTD eliminates...

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Vydáno v:Digital signal processing Ročník 26; s. 81 - 86
Hlavní autoři: Rao, Xuan, Tao, Haihong, Su, Jia, Guo, Xiaolu, Zhang, Jinze
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Inc 01.03.2014
Témata:
Algorithms
Axis rotation
Coherence
Coherent integration
Digital signal processing
Migration
Moving targets
MTD
Radar detection
Reduction
Target detection
Weak target
Coherent integration
Axis rotation
MTD
Weak target
Radar detection
ISSN:1051-2004, 1095-4333
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Shrnutí:Weak targetʼs range migration often happens for long time integration in radar detection. To compensate for linear range migration and detect weak targets effectively, a novel coherent integration detection algorithm, axis rotation moving target detection (AR-MTD), is proposed. The AR-MTD eliminates the linear range migration by rotating two-dimensional echoes data plane, and realizes coherent integration via moving target detection (MTD). As the targetʼs resident time in a single range cell increases, the integration gain is improved clearly. Numerical experiments are presented to verify the reduction in the computational complexity of AR-MTD by selecting the velocity variation regions. Also, it is shown that the detection probability of AR-MTD is improved by nearly 20% when input signal-to-noise ratio (SNR) is −40 dB.
Bibliografie:ObjectType-Article-2
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ISSN:1051-2004
1095-4333
DOI:10.1016/j.dsp.2013.12.003