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Title: Digital sonar system

Abstract

A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal.

Inventors:
 [1];  [1]
  1. Seattle, WA
Issue Date:
Research Org.:
Univ. of Washington, Seattle, WA (United States)
OSTI Identifier:
870174
Patent Number(s):
5469403
Assignee:
Board of Regents of University of Washington (Seattle, WA)
DOE Contract Number:  
FG06-91ER40614
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
digital; sonar; transponder; active; identifies; multifrequency; underwater; activating; signal; received; remote; transmitter; transducer; receives; acoustic; waves; including; generates; analog; electrical; receipt; converted; cross-correlated; transmission; pattern; corresponding; relative; peak; cross-correlation; value; indicative; response; identifying; transmits; responding; analog electrical; acoustic wave; acoustic waves; signal received; digital sonar; correlation value; /367/

Citation Formats

Young, Kenneth K, and Wilkes, R Jeffrey. Digital sonar system. United States: N. p., 1995. Web.
Young, Kenneth K, & Wilkes, R Jeffrey. Digital sonar system. United States.
Young, Kenneth K, and Wilkes, R Jeffrey. Sun . "Digital sonar system". United States. https://www.osti.gov/servlets/purl/870174.
@article{osti_870174,
title = {Digital sonar system},
author = {Young, Kenneth K and Wilkes, R Jeffrey},
abstractNote = {A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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