Updated Diver Navigation Device.
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
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The patent relates to a device whereby, in a divers navigation system employing a receiver having three equal, angularly disposed hydrophone locations, a digital signal processing circuit is employed which receives frequency shift keyed digital data from remote beacons. Circuitry is provided to process this data to derive a bearing indication to the beacon.
- Marine Engineering
- Underwater and Marine Navigation and Guidance