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Direct-to-digital software-defined radar

  • US 9,024,815 B2
  • Filed: 05/29/2012
  • Issued: 05/05/2015
  • Est. Priority Date: 05/27/2011
  • Status: Active Grant
First Claim
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1. A radar system comprising:

  • a receive antenna having an output comprising a received signal;

    an arbitrary waveform generator for providing an arbitrarily defined waveform signal, said arbitrary waveform generator having an output comprising a first reference signal corresponding to said received signal;

    an analog-to-digital convertor having a first input directly coupled to said received signal and configured to the output of said receive antenna for the purpose of converting said received signal to a digital received signal;

    a computer-based adaptive processor having a first input for receiving said digital received signal and a second input for receiving said first reference signal, said processor being configured with a computer-readable media with control logic stored thereon which causes said adaptive processor to perform a process comprising the steps of;

    i. obtaining digitized signal data by correlating said first digital signal with a digitized first reference signal;

    ii. obtaining geo-indexed data by identifying said digitized data according to geo-location data from a geo-positioning device;

    iii. arranging said geo-indexed data according to a three-dimensional information structure, said structure comprising three of the following data parameters;

    range, depth, azimuth, elevation, pulse width, pulse repetition interval, range gate, scan length, antenna element, and cross-range;

    iv. decluttering said arranged data; and

    v. migrating said arranged data.

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