Chin. Phys. Lett.  2011, Vol. 28 Issue (3): 034302    DOI: 10.1088/0256-307X/28/3/034302
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Experiment Observation on Acoustic Forward Scattering for Underwater Moving Object Detection
LEI Bo**, MA Yuan-Liang, YANG Kun-De
Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi'an 710072
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LEI Bo, MA Yuan-Liang, YANG Kun-De 2011 Chin. Phys. Lett. 28 034302
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Abstract The problem of detecting an object in shallow water by observing changes in the acoustic field as the object passes between an acoustic source and receiver is addressed. A signal processing scheme based on forward scattering is proposed to detect the perturbed field in the presence of the moving object. The periodic LFM wideband signal is transmitted and a sudden change of field is acquired using a normalized median filter. The experimental results on the lake show that the proposed scheme is successful for the detection of a slowly moving object in the bistatic blind zone.
Keywords: 43.30.+m      43.60.+d     
Received: 16 March 2010      Published: 28 February 2011
PACS:  43.30.+m (Underwater sound)  
  43.60.+d (Acoustic signal processing)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/3/034302       OR      https://cpl.iphy.ac.cn/Y2011/V28/I3/034302
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Articles by authors
LEI Bo
MA Yuan-Liang
YANG Kun-De
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