Waveform diversity based sonar system for target localization

Lijie Zhang, Jianguo Huang, Yong Jin, Yunshan Hou, Min Jiang, Qunfei Zhang

科研成果: 期刊稿件文章同行评审

12 引用 (Scopus)

摘要

A new monostatic array system taking advantage of diverse waveforms to improve the performance of underwater target localization is proposed. Unlike the coherent signals between different elements in common active array, the transmitted signals from different elements here are spatially orthogonal waveforms which allow for array processing in the transit mode and result in an extension of array aperture. The mathematical derivation of Capon estimator for this sonar system is described in detail. And the performance of this orthogonal-waveform based sonar is analyzed and compared with that of its phased-array counterpart by water tank experiments. Experimental results show that this sonar system could achieve 12 dB-15 dB additional array gain over its phased-array counterpart, which means a doubling of maximum detection range. Moreover, the angular resolution is significantly improved at lower SNR.

源语言英语
页(从-至)186-190
页数5
期刊Journal of Systems Engineering and Electronics
21
2
DOI
出版状态已出版 - 26 4月 2010

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