ADS MNT and FET: Array Element Localization Analysis and Results

Abstract

Accurate array element localization (AEL) is an important component of optimizing the detection performance of bottom-mounted acoustic arrays. Use of the nominal element positions can lead to significant degradations in beamforming performance when the array has been subject to real-world deployment methods. Methods of accurately estimating array element positions using both overt and covert methods have been developed by the Advanced Deployable System (ADS) program, and were used during the ADS Fleet Evaluation Test (FET) and Multi-Node Test (MNT). 'FET' henceforth is used to denote both the FET and the MNT. During FET, data were collected for AEL analysis. This report first explains the AEL algorithms used, and then presents AEL results for the 18 arrays deployed during FET. The algorithm generally achieves an accuracy on the order of 0.5 meters when using acoustic data with a bandwidth of 150 Hz.

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Document Details

Document Type
Technical Report
Publication Date
Mar 13, 2000
Accession Number
ADA392131

Entities

People

  • Marton I. Garay
  • Mary R. Parse
  • Peter E. Mccarty
  • Russell E. Henrichs

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Contracts
  • Coordinate Systems
  • Deployment
  • Engineering
  • Far Field
  • Geometry
  • Grids
  • Longitude
  • Materials
  • Naval Warfare
  • Navigation
  • Near Field
  • Shape
  • Test And Evaluation
  • Travel Time

Readers

  • Military Engineering.
  • Phased Array Antenna Design.
  • Sensor Fusion and Tracking Systems.