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Coded aperture scanning

  • US 8,958,408 B1
  • Filed: 04/12/2012
  • Issued: 02/17/2015
  • Est. Priority Date: 06/05/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • splitting a signal into multiple portions corresponding to elements of an array;

    coding and phase adjusting the multiple portions of the signal to form phase adjusted, coded portions of the signal by coding each portion of the multiple portions with a different code and by applying phase adjustments associated with the corresponding elements of the array to the portions;

    transmitting the phase adjusted, coded portions of the signal via the corresponding elements of the array;

    receiving radiant energy at an element at a receiver side of the array, wherein the radiant energy corresponds to the phase adjusted, coded portions of the signal;

    decoding the coded portions of the signal to form decoded signal portions;

    adding the decoded signal portions to form a received signal;

    digitizing the radiant energy to form a digitized radiofrequency environment;

    generating multiple copies of the digitized radiofrequency environment; and

    applying a different phase adjustment function to each copy of the digitized radio frequency environment to generate multiple complete received signals, wherein each of the multiple complete received signals is associated with a different direction.

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