SONAR COUNTERMEASURE
Assignee
Filed
Dec 28, 1962
Granted
Oct 12, 1993
Location
Abstract
A countermeasure for acoustic homing torpedoes where a plurality of sound ansducers are transversely arrayed across the attack path of the torpedo. The transducers are energized in a time sequence to simulate a relative transducer movement in a direction across the path of the torpedo. The torpedo is thereby misdirected by the high level acoustic signal produced in the transducers slowly changing the location of the signal. The signal is interrupted to provide a silent period, such absence of a signal being interpreted by the torpedo as a miss causing the torpedo to initiate a turn and commence a search which will "exhaust" the torpedo. This sequence is repeated while the torpedo is within a close range of the target.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 15, 1982
Rescinded
Apr 23, 1993
Duration
11 years, 3 months
Record Details
- Patent number
- US 5253216
- Application
- 04248165
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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