Forward scattering detection of a submerged moving target based on adaptive filtering technique

Chuanlin He; Kunde Yang; Bo Lei; Yuanliang Ma

doi:10.1121/1.4929807

Forward scattering detection of a submerged moving target based on adaptive filtering technique

Chuanlin He, Kunde Yang, Bo Lei, Yuanliang Ma

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Forward scattered waves are always overwhelmed by severely intense direct blasts when a submerged target crosses the source-receiver line. A processing scheme called direct blast suppression based on adaptive filtering (DBS-AF) is proposed to suppress such blasts. A verification experiment was conducted in a lake with a vertical hydrophone array and 10 kHz CW impulses. Processing results show that the direct blast is suppressed in a single channel, and an intruding target is identified by the lobes in the detection curve. The detection performance is improved by adopting a time-delay beam-former on the array as a pre-processing technique.

Original language	English
Article number	45
Journal	Journal of the Acoustical Society of America
Volume	138
Issue number	3
DOIs	https://doi.org/10.1121/1.4929807
State	Published - 1 Sep 2015

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abstract = "Forward scattered waves are always overwhelmed by severely intense direct blasts when a submerged target crosses the source-receiver line. A processing scheme called direct blast suppression based on adaptive filtering (DBS-AF) is proposed to suppress such blasts. A verification experiment was conducted in a lake with a vertical hydrophone array and 10 kHz CW impulses. Processing results show that the direct blast is suppressed in a single channel, and an intruding target is identified by the lobes in the detection curve. The detection performance is improved by adopting a time-delay beam-former on the array as a pre-processing technique.",

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AU - Yang, Kunde

AU - Lei, Bo

AU - Ma, Yuanliang

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N2 - Forward scattered waves are always overwhelmed by severely intense direct blasts when a submerged target crosses the source-receiver line. A processing scheme called direct blast suppression based on adaptive filtering (DBS-AF) is proposed to suppress such blasts. A verification experiment was conducted in a lake with a vertical hydrophone array and 10 kHz CW impulses. Processing results show that the direct blast is suppressed in a single channel, and an intruding target is identified by the lobes in the detection curve. The detection performance is improved by adopting a time-delay beam-former on the array as a pre-processing technique.

AB - Forward scattered waves are always overwhelmed by severely intense direct blasts when a submerged target crosses the source-receiver line. A processing scheme called direct blast suppression based on adaptive filtering (DBS-AF) is proposed to suppress such blasts. A verification experiment was conducted in a lake with a vertical hydrophone array and 10 kHz CW impulses. Processing results show that the direct blast is suppressed in a single channel, and an intruding target is identified by the lobes in the detection curve. The detection performance is improved by adopting a time-delay beam-former on the array as a pre-processing technique.

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Forward scattering detection of a submerged moving target based on adaptive filtering technique

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