NDLI: High resolution bathymetric sidescan sonar

Content Provider	IEEE Xplore Digital Library
Author	Weiqing Zhu Min Zhu Xiaodong Liu Feng Pan Xiangjun Zhang Yuling Wang Changhong Wang
Copyright Year	2002
Description	Author affiliation: Inst. of Acoust., Acad. Sinica, Beijing, China (Weiqing Zhu; Min Zhu; Xiaodong Liu; Feng Pan; Xiangjun Zhang; Yuling Wang; Changhong Wang)
Abstract	We have developed a high-resolution bathymetric sidescan sonar (HRBSSS). We suppose the sea bottom is modeled as a thin layer. And there is a phase error term at the phase of the space-time correlation function of the sonar array. This phase error term may be reduced by designing a sonar array suitably. Then the depth accuracy in the vicinity of the nadir is improved obviously. In the design of HRBSSS, we use the subspace-fitting techniques. HRBSSS can resolve the signals arriving from distinct directions concurrently, i.e. can resolve multiple angles-of-arrival in swath bathymetric imaging. HRBSSS has been equipped into an AUV and been tested in a deep lake in May 2001. From the data corrected by several sensors, fine-scale digital terrain maps are obtained. HRBSSS is especially suitable for deployment in AUV, HUV, ROV and towed bodies.
Starting Page	223
Ending Page	227
File Size	379081
Page Count	5
File Format	PDF
ISBN	0780375343
DOI	10.1109/OCEANS.2002.1193276
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal resolution Phased arrays Phase estimation Signal processing Sonar measurements Image resolution High-resolution imaging Sea floor Testing Lakes
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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