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Method and apparatus for estimating radar signal polarisation

  • US 5,731,783 A
  • Filed: 01/23/1996
  • Issued: 03/24/1998
  • Est. Priority Date: 01/27/1995
  • Status: Expired due to Fees
First Claim
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1. A method of estimating polarisation of an incoming electromagnetic signal, using an array of at least three differently directed detectors, each of which produces an output signal with a relationship of amplitude to direction of arrival of the incoming signal which differs for different polarisations of incoming signal, the method comprising the steps of:

  • determining a first amplitude relationship of output signals of two adjacent detectors and a second amplitude relationship of output signals of two non-adjacent detectors, andestimating said polarisation of the incoming signal from the first and second amplitude relationships without reference to phases of the output signals.

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