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. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Washington, Seattle, WA (United States)
- OSTI Identifier:
- 131936
- Patent Number(s):
- 5469403
- Application Number:
- PAN: 7-929,881
- Assignee:
- Univ. of Washington, Seattle, WA (United States)
- DOE Contract Number:
- FG06-91ER40614
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 21 Nov 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; SONAR; DESIGN; DIGITAL SYSTEMS; SOUND WAVES; ANALOG-TO-DIGITAL CONVERTERS
Citation Formats
Young, K K, and Wilkes, R J. Digital sonar system. United States: N. p., 1995.
Web.
Young, K K, & Wilkes, R J. Digital sonar system. United States.
Young, K K, and Wilkes, R J. Tue .
"Digital sonar system". United States.
@article{osti_131936,
title = {Digital sonar system},
author = {Young, K K and Wilkes, R J},
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. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 21 00:00:00 EST 1995},
month = {Tue Nov 21 00:00:00 EST 1995}
}