Analysis of an underwater DPSK telemetry experiment
- 1 November 1978
- journal article
- Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
- Vol. 64 (S1) , S119
- https://doi.org/10.1121/1.2003733
Abstract
An experimental DPSK (differential phase shift keyed) system was used to transmit messages in Dabob Bay, Washington. The 75-kHz carrier was modulated by a 48-bit binary encoded block message. A bit error rate of less than 1% was achieved with a projector-to-hydrophone range of 1000 yards with a signal-to-noise ratio around 12 dB. Results of a lab simulation and theoretical considerations indicated that a 1% rate should occur at a signal-to-noise ratio around 6 dB. Possible causes for this discrepancy, along with effects due to Doppler and multipath, will be discussed. [Work supported by U. S. Naval Torpedo Station.]This publication has 0 references indexed in Scilit: