Research on the establishment and analysis about two kinds of multibeam backscatter strength normalization

Yang Bin; He Linbang

doi:10.3969/j.issn.0253-4193.2018.07.012

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Yang Bin, He Linbang. Research on the establishment and analysis about two kinds of multibeam backscatter strength normalization[J]. Haiyang Xuebao, 2018, 40(7): 143-149. doi: 10.3969/j.issn.0253-4193.2018.07.012

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Yang Bin, He Linbang. Research on the establishment and analysis about two kinds of multibeam backscatter strength normalization[J]. Haiyang Xuebao, 2018, 40(7): 143-149. doi: 10.3969/j.issn.0253-4193.2018.07.012

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Research on the establishment and analysis about two kinds of multibeam backscatter strength normalization

doi: 10.3969/j.issn.0253-4193.2018.07.012

College of Marine Science, Shanghai Ocean University, Shanghai 201306, China

Received Date: 2017-08-30
Rev Recd Date: 2018-01-10

Abstract

Abstract

Multi-beam backscatter strengths (BS) are widely applied in many fields. The sonar image often has low quality caused by the impact of angular response (AR), and due to the poor adaptation of existing AR correction model in complex submarine environment, two kinds of BS normalization methods are proposed to solve the AR influence, namely Gaussian Fitting correction and AR correction. Where, the former is based on the BS regulation and the latter is based on the acoustic scattering mechanism. The experimental results showed that the accuracy of the two methods was about 30% higher than that with the default correction method, and the AR correction method is more accurate than the gauss fitting correction method, but the calculation efficiency was decreased. The above results verify the effectiveness of the two methods, and the normalization of BS is realized and improve the quality of sonar images.
- multibeam backscatter strength,
- angular response,
- multibeam sonar image,
- backscatter strength normalization,
- Gaussian Fitting

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References(11)

References

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