DETECTION AND CLASSIFICATION FOR MULTI-BEAM SONAR SYSTEMS
Assignee
Filed
Jun 8, 1965
Granted
Sep 10, 1991
Location
LA JOLLA CA US
Abstract
An array of sonar transmitting and receiving transducers are so physicallyrranged and their signal voltage so combined as to form beams pointing to various points of the compass. In this invention a signal is formed on a different conductor for each beam and the conductors are wiped in rapid succession to determine the presence of any beam signal. Since any signal may be short-lived the total sampling process must be in milliseconds. Any signal that occurs is converted to digital form and is fed into a first recirculating delay line time compression storage loop. All signals are stored in the first loop. Then the cluster of signals pertaining to one beam is read out to a second recirculating delay line time compression storage loop from when it is read out to a variable frequency super-heterodyne and displayed on a cathode ray tube.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 7, 1982
Rescinded
Sep 20, 1990
Duration
8 years, 8 months
Inventor
- 1ROBERT HALLEY
Record Details
- Patent number
- US 5047993
- Application
- 04463474
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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