Selecting samples for amplifier digital predistortion...

Details Selecting samples for amplifier digital predistortion... Selecting samples for amplifier digital predistortion...

2005-11-15

2008-12-16

Pascal, Robert (Department: 2817)

Amplifiers

Hum or noise or distortion bucking introduced into signal...

C330S136000

Reexamination Certificate

active

07466197

ABSTRACT:
The present invention provides a method for selecting samples for digital amplifier predistortion estimation. The method may include accessing a plurality of samples. Each sample includes information associated with an input signal and a corresponding output signal of the amplifier. The method may also include selecting a subset of the plurality of samples based on a sample distribution and determining a transfer function associated with the amplifier based on the subset of the plurality of samples. The method further includes determining a predistortion function based on the transfer function and applying the predistortion function to the input signal of the amplifier.

REFERENCES:
patent: 5867065 (1999-02-01), Leyendecker
patent: 7062233 (2006-06-01), Huttunen
patent: 2006/0232332 (2006-10-01), Braithwaite

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