A video telemetry system for deep ocean use

Author

Trahan, R.E.

Author_Institution

Dept. of Electr. Eng., New Orleans Univ., LA

fYear

1990

fDate

1-4 Apr 1990

Firstpage

648

Abstract

A video system for use in deep-ocean areas which has been designed and prototyped is presented. The basic specifications for the system include the use of a single coaxial cable for towing a camera sled, providing sled electrical power, and allowing the transmission up the cable of video images at a rate as near real time as possible. The underwater section of the system includes underwater low-light video cameras, a modulator, a single-board IBM PC-compatible computer, and a frame-grabber board. A demodulator, computers, frame-grabber boards, and monitors are included in the surface unit. The uniqueness of this system lies in its ability to send a video signal with a bandwidth of 790 kHz over a cable which has a 56-dB loss at 1 MHz. Some preliminary laboratory results and block diagrams of the elementary systems are included

Keywords

computerised instrumentation; oceanographic equipment; telemetering systems; television systems; 1 MHz; MF; camera sled; deep-ocean areas; demodulator; frame-grabber board; modulator; monitors; single coaxial cable; single-board IBM PC-compatible computer; towcable telemetry system; underwater low-light video cameras; video telemetry system; Cameras; Coaxial cables; Computer displays; Demodulation; Oceans; Prototypes; Real time systems; Sea surface; Telemetry; Underwater cables;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '90. Proceedings., IEEE

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/SECON.1990.117897

Filename

117897