Precision Geolocation of Active Electromagnetic Sensors Using Stationary Magnetic Sensors

Abstract

The objective of this project was to conduct a proof-of-principle demonstration that a single, fixed gradiometer or vector magnetometer could track an active EM sensor at sub-centimeter position and sub-degree accuracy over short baselines. We have shown that the concept of locating a UXO cart via the measurement of its transmitter signal is sound. Further work is warranted to develop a more precise system. Some of the areas that we recommend pursuing are: Develop and trial a refined model of the transmitter source for inversion optimization; investigate the potential of other sensors; investigate the observed unexpected limitation in both the fluxgate and SQUID sensor systems' signal to noise ratio; determine the level of accuracy obtainable when the cart is in motion; Develop and trial improved signal processing and inversion algorithms; and investigate the feasibility of using the technique within the marine environment.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2009
Accession Number
ADA520710

Entities

People

  • David Tilbrook
  • Keith Leslie
  • Kyle Blay
  • Stephen Billings

Organizations

  • Sky Research

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Data Acquisition
  • Detection
  • Detectors
  • Electromagnetic Induction Sensors
  • Geometry
  • Global Positioning Systems
  • Gradiometers
  • Magnetic Detectors
  • Magnetic Fields
  • Magnetic Properties
  • Magnetometers
  • Magnetometry
  • Materials Science
  • Measurement
  • Unexploded Ammunition
  • Uxo Detection
  • Warning Systems

Readers

  • Acoustical Oceanography.
  • Military/Explosive Ordnance Disposal (EOD) Technology
  • Sensor Fusion and Tracking Systems.