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Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection

  • US 7,317,916 B1
  • Filed: 09/14/2000
  • Issued: 01/08/2008
  • Est. Priority Date: 09/14/2000
  • Status: Active Grant
First Claim
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1. A communications system, comprising:

  • a ground station having;

    a beam generator for generating a plurality of beam control signals,a digital beam former circuit receiving the beam control signals and generating a plurality of first element control signals for generating communication beams and a plurality of auxiliary element control signals for canceling interference from the side lobes of the communication beams,a multiplexer multiplexing the first element control signals, andan RF subsystem for communicating an RF signal corresponding to the first element control signals and the auxiliary element control signals;

    a stratospheric platform having;

    a payload receiver for receiving the RF signals,a demultiplexer demultiplexing the RF signals into a second plurality of element control signals corresponding to the first element control signals and a second plurality of auxiliary element control signals and generating a plurality of communication beams in response to the second plurality of element control signals and a plurality of auxiliary element outputs in response to the second plurality of auxiliary element control signals.

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