Accession Number:

ADA052887

Title:

A Study of Ship Track Parameter Estimation,

Descriptive Note:

Corporate Author:

SCIENCE APPLICATIONS INC MCLEAN VA

Personal Author(s):

Report Date:

1977-12-14

Pagination or Media Count:

42.0

Abstract:

The problem addressed in this study is the estimation of ship track parameters from a set of observations on differences in acoustic arrival time between bottom mounted hydrophones. The studied model of this problem consisted of the following features the ship track is assumed to be a straight line which is described by the closest point of approach CPA to a reference hydrophone, time of CPA, ships velocity, and the angle between the track and a line passing through the hydrophones the hydrophones are arrayed in a straight line at known locations the acoustic path between the ship and each hydrophone is assumed to be a straight line and the error between a measured value of the time difference of arrival and the true value is due to limitations in sensor and processing capability.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE