Further Results on Estimation of Ship Parameters

Abstract

A method has been devised which is capable of estimating a ship's heading and length with a noncoherent side-looking radar possessing two beams-- one squinted forward and the other aft. This method uses the ship's projections on the two squinted beams for the estimation. Unfortunately, besides the correct estimate, three spurious pairs of estimates are given. This ambiguity is removed by estimating the target's position in each squinted beam and then using the target's estimated velocity, which is derived from the two positions, to select one of the four estimates. Then, by using a Monte Carlo method, results are obtained on the accuracy of the estimation method. For a typical destroyer with a 450-ft length, the standard deviations of the errors in length and heading are approximately 30.0 ft and 14.0 deg.

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Document Details

Document Type
Technical Report
Publication Date
Jan 26, 1972
Accession Number
AD0519139

Entities

People

  • Gerard V. Trunk
  • Jon D. Wilson

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Classification
  • Data Science
  • Destroyers
  • Detection
  • Errors
  • Frequency
  • Information Science
  • Military Research
  • Monte Carlo Method
  • Probability
  • Radar
  • Ships
  • Side Looking Radar
  • Simulations
  • Standards
  • Test And Evaluation

Readers

  • Approximation Theory.
  • Marine Hydrodynamics
  • Radar Systems Engineering.