Bussgang盲均衡算法研究及FPGA实现.pdf

包括:有限字长的处理,判决模块、抽头权系数更新模块和横向滤波器模块的设计等。测试结果表明均衡器所有的性能指标均达到预定目标,且工作性能良好。关键词:自适应均衡,盲均衡,Bussgang算法,常模算法,白高斯噪声,残余均方误差,FPGA实现AbstractAsaresultofthechanneldistortioncausedbynonidealchannelfTequencyresponsecharacteristic,parabletothebandwidtharesmearedtothepointthattheyarenolongerdistinguishableaswell—definedpulsesatthereceiver,.,theintersymbolinterference(ISI),ortochangeovertime,theequalizerisdesignedtobecapableoftrackingaslowlytime—,knowninadvanvebythereceiver,—,withoutresortingtoaknowntrainingsequence,cannotonlyadaptitselftotheslowlychangingenvironment,:thefirstisthefamilyofstochasticgradientalgorithms,whichiscalledBussgangalgorithms;,orcyclostationarystatistics;—directedalgorithm,Satoalgorithm,Godardalgorithm,Benveniste-Gore‘satalgorithm,andStop-and-,aspecialcaseofGodardalgorittun,,-,includingthedecision—directedalgorithm,Satoalgorithm,Godardalgorithm,Benveniste-Goursatalgorithm,andStop—and—Goalgorithm,—