NDLI: Acoustic video-signal transmission system for autonomous underwater vehicle

Content Provider	IEEE Xplore Digital Library
Author	Kojima, J. Shirasaki, Y.
Copyright Year	1996
Description	Author affiliation: KDD R&D Labs., Saitama, Japan (Kojima, J.; Shirasaki, Y.)
Abstract	This paper describes the acoustic video-signal transmission system for an autonomous underwater vehicle. The acoustic transmission system can transmit a color image of 160/spl times/120 pixels per one second over 1600 meters in distance. The size and weight of the electronics are very small and light enough to be put in a small AUV. The power consumption, that is less than 20 watts, is small enough for AUVs. The transmission speed is 16,000 BPS. In order to realize this system, quadrature phase-shift-keying, adaptive equalizer, image compression, and error correction code for error free transmissions are employed. A wideband transducer was developed for high-speed transmission. It has a small size, light weight, and high sensitivity. A vertical transmission test was carried out in a depth of 100 meters. As a result of this test, it was found that this system has enough Doppler immunity and can transmit images more than 1600 meters in distance without any errors if the SNR (signal to noise ratio) is greater than 15 dB. In the sea test of our AUV, the images of the sea floor were successfully transmitted. This test was carried out at a depth of 400 meters, and no transmission errors were detected.
Starting Page	348
Ending Page	353
File Size	650040
Page Count	6
File Format	PDF
ISBN	0780331850
DOI	10.1109/AUV.1996.532434
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Underwater acoustics Testing Error correction codes Signal to noise ratio Underwater vehicles Color Pixel Energy consumption Phase shift keying Adaptive equalizers
Content Type	Text
Resource Type	Article

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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
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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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