摘要
文章对数字预失真(DPD)算法进行了研究,提出了一种采用QR分解来实现3G无线通信中宽带码分多址(WCDMA)射频功率放大器线性化的DPD算法,该算法能够自适应地改变滤波器的系数以达到补偿功放的非线性,仿真结果表明了其有效性和实用性。
On the basis of the study on the Digital Predistortion(DPD) algorithm,this paper presents a DPD algorithm that accomplishes the linearization of WCDMA RF power amplifiers in 3G radio communications by using QR decomposition.It can adaptively alter the filter coefficient to compensate the nonlinearity of the power amplifiers.Simulation results indicate that this algorithm is effective and useful.
出处
《光通信研究》
北大核心
2011年第2期64-66,共3页
Study on Optical Communications