Multi-beam backscatter image data processing techniques employed to EM 1002 system

Author

Fernandes, William ; Chakraborty, Bishwajit

Author_Institution

Nat. Inst. of Oceanogr., Dona Paula, India

fYear

2009

fDate

18-20 Nov. 2009

Firstpage

93

Lastpage

99

Abstract

Application of multi-beam bathymetric data provides interesting seafloor features. Besides obtaining bathymetric data for seabed characterization backscatter data is also important. However, use of raw multi-beam backscatter image data is limited due to the presence of inherent artifacts. Generally, angular backscatter strength data show higher values towards the normal incidence angles especially for smooth seafloor compared to outer-beam angles. Therefore, off-line corrections are essential to compensate outer-beam backscatter strength data in such a way that the effect of angular backscatter strength is removed. In this work we have developed backscatter data processing techniques for EM1002 multi-beam system.

Keywords

backscatter; geophysical image processing; oceanographic techniques; seafloor phenomena; EM1002 multibeam system; angular backscatter strength data; backscatter data processing techniques; incidence angles; multibeam backscatter image data processing techniques; multibeam bathymetric data; outer-beam angles; outer-beam backscatter strength data compensation; seabed characterization backscatter data; Acoustic beams; Arrays; Backscatter; Data mining; Noise; Real time systems; Transducers; backscatter data; image processing techniques; multi-beam;

fLanguage

English

Publisher

ieee

Conference_Titel

Ocean Electronics (SYMPOL), 2009 International Symposium on

Conference_Location

Cochin

Print_ISBN

978-1-4244-9119-3

Electronic_ISBN

978-1-4244-9118-6

Type

conf

DOI

10.1109/SYMPOL.2009.5664157

Filename

5664157