Numerical modeling and simulation technique in time-domain for multibeam echo sounder
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
A Multibeam Echo Sounder (MBES) is commonly used for rapid seafloor mapping. We herein present a time-domain integrated system simulation technique for MBES development. The Modeling and Simulation (M&S) modules consist of four parts: sensor array signal transmission, propagation and backscattering modeling in the ocean environment, beamforming of the received signals, and image processing. Also, the simulation employs a ray-theory-based algorithm to correct the reconstructed bathymetry, which has errors due to the refraction caused by the vertical sound velocity profile. The developed M&S technique enables design parameter verification and system parameter optimization for MBES. The framework of this technique can also be potentially used to characterize the seabed properties. Finally, typical seafloor images are presented and discussed.
Abstract
A Multibeam Echo Sounder (MBES) is commonly used for rapid seafloor mapping. We herein present a time-domain integrated system simulation technique for MBES development. The Modeling and Simulation (M&S) modules consist of four parts: sensor array signal transmission, propagation and backscattering modeling in the ocean environment, beamforming of the received signals, and image processing. Also, the simulation employs a ray-theory-based algorithm to correct the reconstructed bathymetry, which has errors due to the refraction caused by the vertical sound velocity profile. The developed M&S technique enables design parameter verification and system parameter optimization for MBES. The framework of this technique can also be potentially used to characterize the seabed properties. Finally, typical seafloor images are presented and discussed.
참고문헌 (15)
- Burdic, W.S., "Underwater Acoustic System Analysis" (1984), Prentice-Hall
- de Moustier, C., "Beyond bathymetry: mapping acoustic backscattering from the deep seafloor with sea beam", J. Acoust. Soc. Amer., 79, pp.316~331 (1986)[DOI]
- De Plaa, J., "Correcting bathymetry measurements for water sound speed effects using inversion theory", J. Acoust. Soc. Amer., 123, pp.3352~ (2008)[DOI]
- Dinn, D.F., "The effect of sound velocity error on multi-beam sonar depth accuracy", Proc. MTS, 1995, 1001~1010
- Farr, H.K., "Multi-beam bathymetry sonar: sea beam and hydrochart", Mar. Geod., 4, pp.77~ (1980)[DOI]
- Ioannides, P., "Uniform circular and rectangular arrays for adaptive beamforming applications", IEEE Antenn. Wirel. P. R., 4, pp.351~354 (2005)[DOI]
- Hughes Clarke, J.E., "Applications of multibeam water column imaging for hydrographic survey", Hydrog. J., 120, pp.3~ (2006)
- Kammerer, E., "A New Method for the Removal of Refraction Artifacts in Multibeam Echosounder Systems", pp.2000
- "Multibeam Sonar Theory of Operation"[URL]
- Li, H., "Research on ship wake acoustic imaging based on multi-beam sonar", Proc. MTS, 2014, 1~5
- Tonchia, H., "The effect of sound velocity on wide swath multibeam system data", Proc. MTS, 1996, 969~974
- Urick, R.J., "Principles of Underwater Sound" (1983), McGrawHill
- Van Veen, B.D., "Beamforming: a versatile approach to spatial filtering", IEEE ASSP Mag., 5, pp.4~24 (1988)
- Yang, L., "Multibeam sonar bottom detection using multiple subarrays", Proc. OCEANS '97, 2, pp.932~938 (1997)
- Yu, J., "A combined boundary integral and Lambert's law method for modelling multibeam backscatter data from the seafloor", Cont. Shelf Res., 103, pp.60~69 (2015)[DOI]