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Stratospheric-based communication system having interference cancellation

  • US 7,720,472 B1
  • Filed: 09/14/2000
  • Issued: 05/18/2010
  • Est. Priority Date: 09/14/2000
  • Status: Expired due to Fees
First Claim
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1. A communications system comprising:

  • a stratospheric platform having a payload controller and a phased array antenna having a plurality of elements for generating a first beam and a second beam; and

    a gateway station in communication with said stratospheric platform, said gateway station receiving a first signal having the first beam having interference from the second beam therein and receiving a second signal having the second beam having interference from the first beam therein,said gateway station comprising a first subtracting block for subtracting said second signal from said first signal to obtain the first beam; and

    said gateway station comprising a second subtracting block for subtracting said first signal from said second signal to obtain the second beam.

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