单载波频域均衡的NP算法研究与FPGA实现  

Study on Algorith for NP in SC-FDE and its FPGA Realization

作　　者：周鹏[1] 陈慧[1] 黄秋元[1] 陈伟[1] 黄彩 

机构地区：[1]武汉理工大学信息工程学院,武汉430070 [2]上海明波通信技术有限公司,上海201203

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第3期607-610,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：湖北省自然科学基金项目资助(批准号:20101J0169)

摘　　要：针对单载波的频域均衡时色噪声对系统性能的影响,提出一种NP(noise predictor)算法来去除色噪声.通过NP算法去除了相邻样值的相关性,使得色噪声得到白化,并且通过仿真验证结果表明NP算法可以很好地消除单载波频域均衡时色噪声的影响.此外,在算法实现中采用8倍时分复用的降频方法,使用组划分,在保证性能的同时节约了硬件资源,还提高了工作频率.As the color noise has bad impact on the system performance in SC-FDE,a NP algorithm was proposed to remove it.By NP algorithm,the relativity of adjacent samples was removed,and the color noise was whitened.The simulation and verification of NP algorithm showed that the impact of color noise was well eliminated when NP algorithm was adopted.Besides,when the algorithm was implemented,the use of 8-times TDM which could reduce the frequency and the method of flexible grouping were very helpful to save the hardware resources,and also improved the operating frequency while ensuring the performance of the system.

关 键 词：噪声预测 单载波频域均衡 码间干扰 均衡 白噪声 

分 类 号：TN949.197[电子电信—信号与信息处理]