A Study of Ship Track Parameter Estimation,

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, ship's 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.

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Document Details

Document Type
Technical Report
Publication Date
Dec 14, 1977
Accession Number
ADA052887

Entities

People

  • Joseph Czika

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Bandwidth
  • Computers
  • Convergence
  • Covariance
  • Data Acquisition
  • Data Sets
  • Detectors
  • Equations
  • Error Analysis
  • Errors
  • Estimators
  • Geometry
  • Linear Systems
  • Measurement
  • Observation
  • Random Variables

Readers

  • Acoustics.
  • Radar Systems Engineering.
  • Sensor Fusion and Tracking Systems.