Radar Transmitter Geolocation via Novel Observation Technique and Particle Swarm Optimization

Abstract

The ability to precisely determine the location of radar transmitters can be crucially important in maintaining domain awareness. This, however, may be problematic with traditional methods when used with a distributed network of disparate sensors. A novel geolocation technique for circularly scanning radar transmitters is introduced. This technique uses the differenced central times of arrival (DCTOA) of the mainbeam as an observable. The solution for the transmitters position and scan rate are given using a weighted least squares approach as well as a particle swarm optimizer. Experimental results show this technique is able to locate a radar transmitter within 11 meters, while maintaining minimal complexity. This technique has the advantage of requiring orders of magnitude less timing synchronization among receivers, an order of magnitude less data transfer, and it does not require simultaneous illumination of receivers.

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Document Details

Document Type
Technical Report
Publication Date
Mar 03, 2012
Accession Number
AD1000243

Entities

People

  • Jay W. Middour
  • John G. Warner

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Angle Of Arrival
  • Continuous-Wave Radar
  • Coordinate Systems
  • Data Analysis
  • Equations
  • Geolocation
  • Geometry
  • Grids
  • Measurement
  • Nonlinear Systems
  • Particle Swarm Optimization
  • Radar
  • Radar Signals
  • Radar Transmitters
  • Transmitters

Readers

  • Agent-Based Social Robotics and Mobile-Assisted Learning in Virtual Environments.
  • Operations Research
  • Radar Systems Engineering.