Abstract
Either amplitude based methods or phase based methods are usually used in multibeam bathymetry system and chosen in practical measurement by ad hoc criteria. The errors of the detection are often caused by choosing wrong detection method. In this paper a modified multiple subarrays amplitude-phase united detection method is proposed, which uses both the amplitude and phase of echo from bottom. This new method not only realizes the super-wide swath coverage, but also improves the detection performance by using the phase differences among subarrays in place of phases of subarrays to estimate the phase slope image. Experimental results are also analyzed and discussed to demonstrate the effectivity of the proposed approach.
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Foundation item: Sponsored by Foundation of Underwater Acoustic Technology National Key Lab (No. 5144503025ZS2301) and Foundation of the Chinese Postdoctoral Science (No. LRB00025).
ZHOU Tian was born in Yancheng City, Jiangsu Province, China in 1980. He received the bachelor degree and master degree in Harbin Engineering University in 2000 and 2002 respectively. He is a ph. D student in Harbin Engineering University. His research interests are in the general area of underwater acoustic.
LI Hai-sen was born in Harbin, Heilongjiang Province, China in 1962. He received the bachelor degree, master degree and Ph. D degree in Harbin Engineering University respectively in 1984, 1990 and 1999, respectively. From 1984, he taught in the School of Underwater Acoustic at the Harbin Engineering University, China. He is currently the professor in the School of Underwater Acoustic and Post- Ph. D of Instrument Science and Technology of Harbin Institute of Technology, China. He is a fellow of Acoustic Society of China, and member of Ocean Survey and Mapping Branch Society of Survey and Mapping Society of China.
ZHU Zhi-de was born in Yangzhou, Jiangsu Province, China, 1937. He graduated from Department of Underwater Acoustic of Military Engineering Institute of Chinese People’s Liberation Army in 1963. He is a professor of school of Underwater Acoustic, Harbin Eingeering University. His research interests are underwater acoustic signal processing.
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Zhou, T., Li, Hs., Zhu, Zd. et al. Application of modified multiple subarrays detection method to multibeam bathymetry system. J Mar. Sc. Appl. 4, 39–43 (2005). https://doi.org/10.1007/s11804-005-0031-2
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DOI: https://doi.org/10.1007/s11804-005-0031-2