An eight-channel sampled-data acoustic telemetry system for deep-water biomedical and environmental applications
Reading, Leslie James
Sackman, George L.
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A general-purpose acoustic telemetry system is presented. The carrier of one hundred forty-five kilohertz is frequency shift keyed at a average rate of once a millisecond, the subcarrier being pulsed width modulated by seven channels of analog data and one synchronization channel The receiver is automatically synchronized and various error detecting schemes are employed. The system is designed to be battery operated at the transmitter and is specifically intended to telemeter physiological and environmental data from a free swimming diver to the surface. The theoretical lateral design range is three hundred meters.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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