WCDMA直放站频域干扰抵消器的设计
首发时间:2008-09-17
摘要:本文提出了一种WCDMA直放站系统的频域干扰抵消算法,该方法利用FFT变换将WCDMA信号变换到频域,经过块LMS滤波器自适应地消除干扰信号,和传统的时域算法相比具有更高的性能和更低的计算复杂度。仿真结果证明,该算法可有效改善功率谱密度和星座图EVM指标。
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Design of Interference Cancellation in Frequency Domain for WCDMA Repeater
Abstract:This paper provides a novel design of Interference Cancellation for WCDMA Repeater, which first transforms the WCDMA signal to frequency domain via the FFT algorithm, and then utilizes the block LMS filter to cancel the interference. Compared with the tradition LMS algorithm in time domain, the method we presented in this paper can achieve the higher performance and lower calculation complexity. The Simulation results of PSD and EVM indicate its efficiency.
Keywords: WCDMA Repeater Interference Cancellation
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No.2409928684612216****
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