预失真
线性化
算法
数学
计算机科学
递归最小平方滤波器
非线性系统
控制理论(社会学)
最小二乘函数近似
线性
非线性失真
作者
Saijie Yao,Hua Qian,Kai Kang,Manyuan Shen
出处
期刊:International Conference on Acoustics, Speech, and Signal Processing
日期:2013-05-26
卷期号:: 4736-4739
被引量:9
标识
DOI:10.1109/icassp.2013.6638559
摘要
In digital predistortion (DPD) implementation, the computational complexity of coefficients estimation of the DPD model is a key performance metric. Conventional coefficients estimation algorithms, such as least squares (LS), recursive least squares (RLS), and least mean squares (LMS) cannot achieve a fast convergence with little computation. In this paper, we propose an RLS algorithm with reduced complexity by introducing orthonormal polynomial basis functions. The proposed algorithm is as simple as LMS algorithm yet as efficient as RLS algorithm. Simulation results validate our analysis.
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