NDLI: Synthetic long baseline navigation of underwater vehicles

Content Provider	IEEE Xplore Digital Library
Author	Larsen, M.B.
Copyright Year	2000
Description	Author affiliation: Maridan A/S, Horsholm, Denmark (Larsen, M.B.)
Abstract	Describes a concept (patent pending) for accurate autonomous deep-water navigation of underwater vehicles (UVs) for extended periods of time. The concept is called synthetic long baseline (SLBL) and is based on the combination of dead-reckoning (DR) and acoustic range and/or range rate measurements from a single acoustic source, e.g., a transponder moored to the sea floor. Focus is kept on a simple form of SLBL, which can be implemented using existing commercial-off-the-shelf components. Combined with a high performance dead-reckoning navigation system, SLBL provides adequate accuracy and redundancy to eliminate the need for a USBL equipped survey ship or a full LBL transponder network, even on long duration deep water surveys. Some level of redundancy is incorporated, which permits quality control of navigation data. Experimental results, from accuracy verification tests of the high performance doppler-inertial dead-reckoning based navigation system MARPOS(R), suggests that SLBL will provide sub-meter positioning accuracy for 1/spl times/1 km site surveys using a single transponder as the reference point. The performance is almost independent of water depth. The presented SLBL system may also allow for highly accurate and cost-efficient pipeline surveys and a variety of other applications.
Starting Page	2043
Ending Page	2050
File Size	1069114
Page Count	8
File Format	PDF
ISBN	0780365518
DOI	10.1109/OCEANS.2000.882240
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Navigation Underwater vehicles Transponders Underwater acoustics Acoustic measurements Sea measurements Sea floor Marine vehicles Quality control System testing
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

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