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:

1974-09-01

Pagination or Media Count:

117.0

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