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:
-
- 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}
}