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Amplifier measurement and modeling processes for use in generating predistortion parameters

  • US 6,388,513 B1
  • Filed: 07/05/2001
  • Issued: 05/14/2002
  • Est. Priority Date: 07/13/1999
  • Status: Expired due to Term
First Claim
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1. A method for modeling a wideband amplifier, comprising:

  • (a) applying stimulation signals to the amplifier to measure characteristics of the amplifier;

    (b) using the characteristics measured in (a) to generate a non-linear model of the amplifier;

    (c) applying an input signal to the model and to the amplifier while monitoring a difference between respective outputs thereof, and adaptively adjusting parameters of the model until an error floor in the difference is substantially reached; and

    (d) increasing a level of complexity of the model and then repeating (c), wherein increasing the level of complexity of the model comprises increasing an order of the model.

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