DIGITAL SONAR SYSTEM
Assignee
BOARD OF REGENTS OF THE UNIVERSITY OF WASHINGTON
Filed
Aug 11, 1992
Granted
Nov 21, 1995
Location
SEATTLE WA US
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.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 10, 1993
Rescinded
Mar 24, 1995
Duration
2 years, 1 month
Inventor
- 1KENNETH K. YOUNG
Record Details
- Patent number
- US 5469403
- Application
- 07929881
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
BOARD OF REGENTS OF THE UNIVERSITY OF WASHINGTONMore from this assignee
Related by domain
AIRBORNE RADAR JAMMING SYSTEM
BOEING, COMPANY, THE
METHOD AND APPARATUS FOR THE DETECTION OF OBJECTS USING ELECTROMAGNETIC WAVE ATTENUATION PATTERNS
JG TECHNOLOGIES LLC
DUAL INFRARED BAND OBJECTIVE LENS
OPTICAL NIGHT VISION DEVICE WITH STANDARD LIGHT INTENSIFIER
THOMSON-CSF SEXTANT
MULTIPLE INFRARED MISSILE JAMMER
LOCKHEED SANDERS INC, A DELAWARE CORPORATION
BANDGAP RADIATION DETECTOR