Model Identification for Digital Predistortion of Power Amplifier With Signed Regressor Algorithm
IEEE Microwave and Wireless Components Letters(2018)
Abstract
In this letter, a low-complexity approach is proposed to estimate model parameters of digital predistortion (DPD). It takes the advantage of low implementation cost of the signed regressor algorithm and eliminates most multiplications required. A Walsh-Hadamard transform is employed to avoid the correlation between signed DPD basis functions. Performance of the proposed approach is evaluated via e...
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Key words
Convergence,Predistortion,Nonlinear distortion,Approximation algorithms,Wireless communication,Correlation
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