Blind nonlinear compensation technique for RF receiver front-end

A novel nonlinear compensation technique for RF receiver front-end is proposed. In order to adapt itsself to unkown input signal and interference, the compensator employes a blind identification algorithm that aims at minimizing the out-of-band intermodulation distortion power. To ensure the converg...

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Bibliographic Details
Published in2013 European Microwave Integrated Circuit Conference pp. 556 - 559
Main Authors Yuelin Ma, Yamao, Yasushi
Format Conference Proceeding
LanguageEnglish
Published European Microwave Association 01.10.2013
Subjects
Band-pass filters
Baseband
Interference
Intermodulation distortion
linearization
nonlinear compensation
predistortion
Radio frequency
receiver nonlinearity
Receivers
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Summary:A novel nonlinear compensation technique for RF receiver front-end is proposed. In order to adapt itsself to unkown input signal and interference, the compensator employes a blind identification algorithm that aims at minimizing the out-of-band intermodulation distortion power. To ensure the convergence of blind compensation, a de-embedding technique is developed to reconstruct the polynomial model so that the contribution of the linear component is minimized in the nonlinear function. The proposed technique has low complexity and allows the compensator to operate in real time. The experimental results indicate that the proposed compensation technique can effectively suppress distortion due to receiver front-end nonlinearity.