Article(id=1242117085459976647, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242117052853453824, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1246291200000, receivedDateStr=2009-06-30, revisedDate=1248364800000, revisedDateStr=2009-07-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1251388800000, onlineDateStr=2009-08-28, pubDate=1251388800000, pubDateStr=2009-08-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1251388800000, onlineIssueDateStr=2009-08-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774073390589, creator=sys-migrate, updateTime=1774073390589, updator=sys-migrate, issue=Issue{id=1242117052853453824, tenantId=1146029695717560320, journalId=1146031591421210625, year='2009', volume='27', issue='0916', pageStart='3', pageEnd='140', issueExtLink='null', onlineDate='null', pubDate='1251388800000', pubDateStr='2009-08-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774073382818, creator='sys-migrate', updateTime=1774073382818, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=69, endPage=73, ext={EN=ArticleExt(id=1242117087666176139, articleId=1242117085459976647, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Performance Analysis for Rake Receiver of CPPM-UWB System, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=This paper presents a design of an improved signal structure of Chaotic Pulse Position Modulation(CPPM), in view of the fact that the chaotic sequence will lost its chaotic characteristics in the traditional CPPM-UWB system. The performance of the improved chaotic pulse position modulation Ultra Wideband (UWB) communication system is analyzed under the condition without Inter Symbol Interference(ISI), when the system uses Rake receiver of IEEE UWB indoor multipath channel model. The simulation of bit error rate for different Rake receivers on the indoor multipath environment is carried out. The studies indicate that the choice of the number of pulses per bit, the distance between the receiver and the transmitter and the average pulse repetition period have a great influence on system BER. The Rake receiver in the CM1 channel enjoys the best performance under IEEE UWB indoor multipath channel. The computer simulation shows that the performance of ideal Rake receiver is the best though its system is the most complicated. It is also shown that the performance of PRake receiver is better than SRake's and its system is also more complicated than SRake's. The performance of SRake and PRake receivers is improved significantly with the increase of interdigitated number., authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=LIAO Hong Yun, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=R55t38t4WdhViTcA9sfRYw==, pdfFileSize=960303, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242117086751822292, articleId=1242117085459976647, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=CPPM-UWB系统Rake接收机性能分析, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=针对传统CPPM-UWB系统中混沌序列可能丧失混沌特性的弊端，设计一种改进的混沌脉冲位置调制信号结构。基于无码间干扰的超宽带系统，分析了改进的混沌脉冲位置调制信号在IEEE UWB室内多径信道模型下的接收机性能，在室内多径环境下对不同Rake接收机的误码率进行了仿真。计算机仿真表明，比特的脉冲数量、接收机与发射机的距离、脉冲的重复周期的选取对系统的性能影响较大。在室内多径环境中，CM1信道下的Rake接收机性能最好，理想Rake接收机性能最优，但其系统也最复杂。SRake接收机的性能优于PRake接收机，但SRake接收机的复杂性高于PRake接收机。SRake和PRake接收机的性能随着叉指数目（即接收机分辨出的多径分量数目）的增加有明显改善。, authors=廖洪运,王玲, authorsList=廖洪运;王玲, authorCompany=湖南大学电气与信息工程学院, correspAuthors=null, authorNote=null, correspAuthorsNote=廖洪运, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=jmxtJ+8wpgyiRIyjzgUFdQ==, pdfFileSize=960303, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null)}, authors=[Author(id=1299236798245396942, tenantId=1146029695717560320, journalId=null, articleId=1242117085459976647, 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