HIGH DATA RATE CONTINUOUS WAVE TOWED SONAR
Assignee
Filed
May 9, 1977
Granted
Oct 2, 1990
Location
Abstract
A continuous wave, doppler sonar has an underwater towed portion including projector disposed vertically displaced from a multi-element receiving array. Received CW signals are processed for spillover elimination and subjected to phase lock loop tracking filters for reverberation and target doppler prior to target signal detection, thresholding, multiplexing and transmission to the towing portion. The target signals are distributed as to azimuth, recirculated in a memory, and reiteratively displayed in PPl format, with periodic updating.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 3, 1982
Rescinded
May 4, 1990
Duration
8 years, 2 months
Record Details
- Patent number
- US 4961174
- Application
- 05795671
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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