Passive Multipath Target Tracking in an Inhomogeneous Acoustic Medium.

Abstract

Tracking a maneuvering acoustic source using multipath (MP) arrivals in an inhomogeneous (IH) ocean medium is investigated. Errors introduced by a horizontally stratified sound speed profile are quantitatively evaluated. A new method of converting MP time difference of arrivals to depth and range which accounts for the IH effect is developed and evaluated. A 3-D target tracker previously used in MP tracking is modified in order to remove estimation biases and improve computational efficiency. Tracking performance is demonstrated using extensive simulation and shown to be greatly improved. Keywords: Three dimensional; Prefilters; Underwater; Maneuvering targets.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA193284

Entities

People

  • Amnon Shefi

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Waves
  • Acoustics
  • Artificial Intelligence
  • Computers
  • Differential Equations
  • Electrical Engineering
  • Engineering
  • Geometry
  • Kalman Filters
  • Mathematical Filters
  • Passive Tracking
  • Range Finding
  • Ray Tracing
  • Signal Processing
  • Target Tracking
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Wave Propagation and Nonlinear Chaotic Dynamics.