Accession Number : ADD002519

Title :   Updated Diver Navigation Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Acks,Robert S ; Watson,Stanley J ; McCracken,Howard B

Report Date : 16 Mar 1976

Pagination or Media Count : 8

Abstract : The patent relates to a device whereby, in a diver's 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.

Descriptors :   *Divers, *Underwater navigation, *Patents, Acoustic signals, Hydrophones, Frequency shift keyers, Signal processing, Direction finding

Subject Categories : Marine Engineering
      Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE