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Adaptive array antenna controller

  • US 20040140929A1
  • Filed: 12/24/2003
  • Published: 07/22/2004
  • Est. Priority Date: 12/27/2002
  • Status: Active Grant
First Claim
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1. An adaptive array antenna controller that adaptively controls weighting coefficients of a plurality of antenna elements of an array antenna based on a digital signal outputted from an analog-to-digital converter receiving a weighted analog signal received from the array antenna, comprising:

  • an impulse response measuring device for obtaining impulse responses, based on correlation calculation of the digital signal and a known signal having a predetermined pattern;

    an impulse response generator for extracting path components existing within a predetermined time duration from among a plurality of path components included in the impulse responses and generating desired impulse responses;

    a reference signal generator for forming a reference signal having a desired pattern, based on convolution calculation of the desired impulse responses and the known signal; and

    an adaptive controller for adjusting the weighting coefficients, based on the digital signal and the reference signal.

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