NDLI: Calibrating multibeam, wideband sonar with reference targets

Content Provider	IEEE Xplore Digital Library
Author	Ona, E. Andersen, L.N. Knudsen, H.P. Berg, S.
Copyright Year	2007
Description	Author affiliation: Inst. of Marine Res., Bergen (Ona, E.)
Abstract	The new multi-beam sonar, Simrad MS70, can transmit over the frequency band 70-120 kHz, and calibration of each individual beam becomes slightly more difficult than for conventional split beam systems. Two new tungsten carbide spheres have been specially designed and manufactured to enable an accurate calibration over the specified frequency band. They are also heavy enough to stabilize the calibration rig, and have sufficiently high target strength for discrimination against biological targets within the measurement volume during sea calibrations. Calibration results from the first trials of the new spheres will be shown. This includes tests made with the sonar itself to verify that the backscattering of the spheres was correct and according to the numerical computations. A procedure for standard calibration of the MS70 multibeam system is suggested and tested. Additionally, results from detailed inspections of individual beams in the 500-beam array of the MS70 sonar will be shown and discussed.
Starting Page	1
Ending Page	5
File Size	2724788
Page Count	5
File Format	PDF
ISBN	9781424406340
DOI	10.1109/OCEANSE.2007.4302473
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-18
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Calibration Frequency Tungsten Manufacturing Sea measurements Volume measurement Testing Sonar measurements Backscatter Marine animals sonar
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Optimizing Two Targets for Calibrating a Broadband Multibeam Sonar

Acoustic Robustness of Two Standard Spheres for Calibrating a Broadband Multibeam Sonar

Calibrating a 200-kHz multibeam sonar in a large freshwater tank

Multibeam sonar calibration: target localization in azimuth

In-situ far-field calibration of multibeam sonar arrays for precise backscatter imagery

Calibrating Multibeam Sonar by the Standard-Target Method: Extending Limited Measurements

Measurement of multibeam sonar directivity patterns

Calibrating a 90-kHz multibeam sonar

Processing techniques for SASS multibeam sidescan imagery

Calibrating multibeam, wideband sonar with reference targets

Similar Documents

Optimizing Two Targets for Calibrating a Broadband Multibeam Sonar

Acoustic Robustness of Two Standard Spheres for Calibrating a Broadband Multibeam Sonar

Calibrating a 200-kHz multibeam sonar in a large freshwater tank

Multibeam sonar calibration: target localization in azimuth

In-situ far-field calibration of multibeam sonar arrays for precise backscatter imagery

Calibrating Multibeam Sonar by the Standard-Target Method: Extending Limited Measurements

Measurement of multibeam sonar directivity patterns

Calibrating a 90-kHz multibeam sonar

Processing techniques for SASS multibeam sidescan imagery

Calibrating multibeam, wideband sonar with reference targets