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Information gathering using reflected satellite signals

  • US 7,564,402 B2
  • Filed: 07/22/2005
  • Issued: 07/21/2009
  • Est. Priority Date: 07/26/2004
  • Status: Active Grant
First Claim
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1. A method of using reflected satellite signals to determine information comprising the steps of:

  • receiving one or more reflected satellite signals from at least one satellite at one or more receivers, said reflected satellite signals being reflected from an object, ground or a combination thereof, prior to reception by said one or more receivers;

    determining a power of said one or more reflected satellite signals;

    comparing the determined power of said one or more reflected satellite signals to a calibrated value of a power obtained from calibration data for said object, said ground or said combination thereof; and

    determining information about said object, said ground, or an area or a location as a result of said comparing step.

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