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RETURN-WAVE, PHASE CONTROLLED ADAPTIVE ARRAY

  • US 3,764,213 A
  • Filed: 05/08/1972
  • Issued: 10/09/1973
  • Est. Priority Date: 05/08/1972
  • Status: Expired due to Term
First Claim
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1. An energy transmission and reception system comprising:

  • means for transmitting energy at a target;

    means for receiving a portion of the energy returned from the target;

    an image plane stop structure having an aperture formed therein;

    modulation means coupled in the reception path of said received energy for spatially modulating the received beam with respect to said aperture;

    detector means, disposed on the opposite side of said image plane stop structure from said modulation means, for producing output signals indicative of the intensity of the received energy passing through said aperture; and

    control means responsive to the output signals from said detector means, for adjusting the relative phase of selected segments of the received energy beam so as to cause the energy in the adjusted received beam to approach an in-phase condition.

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