Method and equipment of simulating predistortion linearization

A method of simulating predistortion linearization, includes: adjust the input signal's amplitude, and convert the frequency to the intermediate frequency or low frequency; produce predistortion signal; add the said predistortion signal to the input signal to transmit together, which has been d...

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Bibliographic Details
Main Author HONGTAO RU
Format Patent
LanguageEnglish
Published 26.09.2007
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:A method of simulating predistortion linearization, includes: adjust the input signal's amplitude, and convert the frequency to the intermediate frequency or low frequency; produce predistortion signal; add the said predistortion signal to the input signal to transmit together, which has been delay matching processed; distortion detect the transmission signal, and adaptation optimize the predistortion signal's amplitude and phase parameter. The invention eliminates non-linearity produced by transmission channel or device by means of producing simulation (3) exponent, (5) exponent, (7) exponent even much higher exponent predistortion signal, and adaptation adjust by the output distortion detection. The invention is easy realizable and producible, and has low cost.
Bibliography:Application Number: CN2004844206