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Active imaging using satellite communication system

  • US 7,633,427 B2
  • Filed: 04/04/2006
  • Issued: 12/15/2009
  • Est. Priority Date: 10/20/2005
  • Status: Active Grant
First Claim
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1. An active imaging system using communication satellites, comprising:

  • a plurality of transmitters emitting time-synchronized signals directed to a target, the transmitters being configured to pan each of the time-synchronized signals across a surface of the target;

    a database storing a plurality of known structure descriptions;

    a constellation of communication satellites, each communication satellite receiving and time stamping each of the time-synchronized signals reflected from the target to form an active image of the target for determining a range to the target; and

    a computer system for comparing the active image of the target to the plurality of known structure descriptions stored within the database to identify and locate the target and using the time stamp data to determine movement of the target.

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