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Method for eletromagnetic source localization

  • US 5,315,308 A
  • Filed: 11/04/1992
  • Issued: 05/24/1994
  • Est. Priority Date: 11/04/1992
  • Status: Expired due to Fees
First Claim
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1. In a system including an antenna structure and a data processing system, a method for determining a direction of arrival (DOA) of an electromagnetic plane wave from a radiating source, said electromagnetic wave exhibiting a maximum wavelength much smaller than radiating source to antenna structure distance, said method comprising the steps of:

  • (a) measuring and storing sets of electric and magnetic vector components from a received electromagnetic plane wave as sensed by said antenna structure, each set defining a plane in space;

    (b) deriving direction vectors orthogonal to planes defined by said measured sets of electric and magnetic vector components;

    (c) finding three dimensional components of each said direction vector;

    (d) averaging like dimension components for a plurality of direction vectors; and

    (e) determining said DOA by vectorially combining said averaged components.

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