Description of and experimental results for a high data rate underwater acoustic telemetry link

Author

Estes, Lee ; Fain, Gilbert ; Caron, Paul

Author_Institution

Dept. of Electr. & Comput. Eng., Southeastern Massachusetts Univ., North Dartmouth, MA, USA

fYear

1990

fDate

5-6 Jun 1990

Firstpage

304

Lastpage

312

Abstract

A wideband system (40 kHz-50 kHz) whose coding is self-synchronous and is adjustable for variations in coherence and reverberation times to obtain a maximum reliable data transmission rate for any given set of conditions is presented. To maximize data rate the approach takes full advantage of system bandwidth. At its simplest level a spectral line is used to represent a bit. The major delimiters of multispectral transmission (within a given system bandwidth) in this environment are coherence time due to Doppler spreading and reverberation time due to multiple transmission path. Banks of different frequencies are sequentially transmitted, each bank being reused after the reverberation time. Theory, experimental setup, and preliminary results are presented

Keywords

acoustic applications; encoding; telemetering; underwater sound; 10 Hz; 40 to 50 Hz; Doppler spreading; adjustable coding; coherence time; high data rate underwater acoustic telemetry link; multiple transmission path; multispectral transmission; reverberation time; self-synchronous coding; wideband system; Bandwidth; Digital signal processing chips; Frequency; Hardware; Reverberation; Signal design; Telemetry; Transmitters; Underwater acoustics; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Autonomous Underwater Vehicle Technology, 1990. AUV '90., Proceedings of the (1990) Symposium on

Conference_Location

Washington, DC

Type

conf

DOI

10.1109/AUV.1990.110472

Filename

110472