DocumentCode
1954236
Title
Multibeam sonar calibration: removal of static surface reverberation by coherent echo subtraction
Author
Chu, Dezhang ; Baldwin, Kenneth C. ; Foote, Kenneth G. ; Li, Yanchao ; Mayer, Larry A. ; Melvin, Gary D.
Author_Institution
Woods Hole Oceanogr. Inst., MA, USA
Volume
4
fYear
2001
fDate
2001
Firstpage
2498
Abstract
Calibration of multibeam sonar in confined environments may require treatment of surface reverberation. In the case of tanks, the method of coherent echo subtraction may be employed to remove static surface reverberation, allowing the tanks to be used for standard-target calibration. This is illustrated for the Simrad SM2000 Multibeam Echo Sounder operating at 200 kHz. The signal-to-noise ratio is typically improved by about 25 dB
Keywords
calibration; echo; reverberation; sonar signal processing; 200 kHz; Simrad SM2000 Multibeam Echo Sounder; coherent echo subtraction; confined environments; multibeam acoustic system; multibeam sonar calibration; signalto-noise ratio; standardtarget calibration; static surface reverberation removal; surface reverberation; Acoustic beams; Aquaculture; Calibration; Marine animals; Oceans; Reverberation; Sea surface; Sonar detection; Surface acoustic waves; Surface contamination;
fLanguage
English
Publisher
ieee
Conference_Titel
OCEANS, 2001. MTS/IEEE Conference and Exhibition
Conference_Location
Honolulu, HI
Print_ISBN
0-933957-28-9
Type
conf
DOI
10.1109/OCEANS.2001.968393
Filename
968393
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