Accession Number : AD0787448

Title :   Automatic Frequency Tracking and An Application of Target Fixing Using Passive Doppler Techniques.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Hurst,Dennis Wayne

Report Date : SEP 1974

Pagination or Media Count : 117

Abstract : A software package was developed to provide the inputs for a passive single-sensor acoustic tracker. This required a computation of sound propagation velocity and resolving high-resolution frequency information from raw acoustic data. A selected frequency was then automatically tracked from an up-doppler to a down-doppler condition. This frequency information coupled with associated bearing information was then used to provide continuous target fixes. (Author)

Descriptors :   *Acoustic tracking, *Doppler sonar, Frequency, Tracking, Passive systems, Automatic, Targets, Position(Location), Doppler systems, Theses, Acoustic velocity, Computer programs

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE