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Adaptive digital sub-array beamforming and deterministic sum and difference beamforming, with jamming cancellation and monopulse ratio preservation

  • US 20030020646A1
  • Filed: 06/15/2001
  • Published: 01/30/2003
  • Est. Priority Date: 06/15/2001
  • Status: Active Grant
First Claim
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1. A method for detecting a radar target of interest in the presence of radar jamming interference, said method comprising the steps of:

  • forming a plurality of sub-arrays from an antenna array;

    forming a respective sub-array beam pattern for each of said plurality of sub-arrays;

    wherein at least one null of each sub-array beam pattern is steered toward an interference; and

    determining a sum beam from said sub-array beam patterns for detecting said target of interest.

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