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《Journal of Zhejiang University(Engineering Science)》 2007-11
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Blind estimation of pseudo-random sequences of spread spectrum signals in multi-paths

SHEN Lei,LI Shi-ju,WANG Yan-bo,CHEN Fang-ni(1.Department of Information Science and Electronics Engineering,Zhejiang University,Hangzhou 310027,China;2.College of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China)  
In order to blind estimation the sequence of asynchronous direct spread signals, this work used independent component analysis(ICA) combining with principle component analysis(PCA) to blindly separate the data bits of different users without the knowledge of the channel.Due to the independence of data bits of different users and the quasi-orthogonal of direct sequences,the direct sequence of signals without multi-path interference could be directly obtained by ICA,and the direct sequence of signals with multi-path interference could be further identified according to the triple correlation function(TCF) of m-sequence.This blind estimation method does not need the synchronization information of direct sequence.The performance analysis under Gaussian noise indicates that this blind estimation arithmetic utilizes the spread gain of CDMA systems and the m-sequences can be obtained in lower SNR signal.
【Fund】: 武器装备研究资助项目
【CateGory Index】: TN911
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【References】
Chinese Journal Full-text Database 6 Hits
1 WANG Man-xi1, 2, LI Hong2, MA Yi-fei1, and TAO Ye-rong2 (1. Institute of Communication Engineering, PLAUST Nanjing 210007;2. Unit 63880 Luoyang 471003);Blind Estimation of Lower SNR Aperiodic DS Signals[J];Journal of University of Electronic Science and Technology of China;2009-02
2 SHEN Lei,ZHAO Zhi-jin Telecommunication School,HangzhouDianzi University,Hangzhou 310018,China;Chip sequence estimation for asynchronous CDMA signals based on blind beamforming[J];Computer Engineering and Applications;2010-05
3 SHEN Lei(College of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018);Signal Pseudocode Estimation for CDMA Based on Blind Beamforming[J];Computer Engineering;2010-15
4 Zhao Chenglin Cao Erhuang Key Lab of Universal Wireless Communications, MOE Wireless Network Lab, Beijing University of Posts and Telecommunications, Beijing 100876, China;Estimation of DSSS Signals’PN Code Sequence Based on SOM Neural Network[J];Information and Communications Technologies;2009-03
5 WANG Manxi1,2,LI Hong2,MA Yifei1,TAO Yerong2(1.Institute of Communication Engineering,PLAUST,Nanjing Jiangsu 210007,China;2.63880 Troops,China);Blind Estimation of PN Sequence Using Hardlimited Hebbian Rule[J];Journal of the Academy of Equipment Command & Technology;2009-02
6 WANG Man-xi~(1,2) LI Hong~2 MA Yi-fei~1 TAO Ye-rong~2 (1.Institute of Communication Engineering,PLAUST,Nanjing,210007;2.Unit 63880,Luoyang,471003);Approach to Blind Estimation of PN sequence in Non-Peiodic DSSS Signals[J];Signal Processing;2009-10
China Proceedings of conference Full-text Database 1 Hits
1 Wang Man-xi~(1,2) Li Hong~1 Tao Ye-rong~1 Lu Jun~1 (1.Unit 63892 Luoyang 471003;2.Institute of Communication Engineering,PLAUST Nanjing 210007);Blind estimation of PN sequence of Aperiodic DS/CDMA signals[A];[C];2009
【Citations】
Chinese Journal Full-text Database 3 Hits
1 ZHANG Tian qi ZHOU Zheng zhong (School of Communication and Information Eng., UEST of China, Chengdu Sichuan 610054, China);A new spectral method of periodic detection of PC sequence in lower SNR DS/SS signals[J];Chinese Journal of Radio Science;2001-04
2 ZHANG Tianqi~1, LIN Xiaokang~1, ZHOU Zhengzhong~2(1. Graduate School in Shenzhen, Tsinghua University, Shenzhen 518055, China; 2. School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China);Approach to blind estimation of PN spreading sequence in lower SNR DS/SS signals[J];Journal of Tsinghua University(Science and Technology);2005-01
3 ZHANG Tian-qi, ZHOU Zheng-zhong (Academy of Communication and Information Eng , UEST, Chengdu 610054,China);Detection and Estimation of DS/SS Signals by Spectra Analysis and Neural Networks[J];Systems Engineering and Electronics;2001-12
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 ZHANG Tian qi ZHOU Zheng zhong (School of Communication and Information Eng., UEST of China, Chengdu Sichuan 610054, China);A new spectral method of periodic detection of PC sequence in lower SNR DS/SS signals[J];Chinese Journal of Radio Science;2001-04
2 Yu Jingdong; Guo Wei; Li Mu(Natiohal Communication Lab. UEST of China Chengdu 610054);Cyclic Spectrum-based DS/SS Signal Detection and Parameter Estimation[J];Journal of University of Electronic Science and Technology of China;1996-S3
3 ZHANG Hua-guo,LI Li-ping,CHEN Tian-qi (School of Electronic Engineering, Univ. of Electron. Sci. & Tech. of China Chengdu 610054);An Approach to Blind Synchronization of DS/SS Signals[J];Journal of University of Electronic Science and Technology of China;2007-02
4 Lü Ming,ZHANG Hong-bo,TANG Bin (School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu 610054);Blind Estimation of PN Spreading Sequence Based on E-PASTd[J];Journal of University of Electronic Science and Technology of China;2007-05
5 Zhang Jun1,2 (1. National Laboratory of Information Control Technology for Communication System, Jiaxing 314033, Zhejiang, China; 2. No.36 Research Institute of CETC, Jiaxing 314033, Zhejiang, China);Approach to Blind Estimation of the Pseudo Noise Sequence in Negative SNR Synchronous CDMA Signal[J];Electronic Warfare;2007-06
6 JIN Yan,JI Hong-bing,LUO Jun-hui(School of Electronic Engineering,Xidian University,Xi'an,Shaanxi 710071,China);A Cyclic-Cumulant Based Method for DS-SS Signal Detection and Parameter Estimation[J];Acta Electronica Sinica;2006-04
7 FU Wei-hong1,YANG Xiao-niu2,LIU Nai-an1(1.State Key Laboratory of Integrated Services Networks,Xi'dian University,Xi'an,Shannxi 710071,China; 2.National Laboratory of Information Control Technology for Communication System,Jiaxing,Zhejiang 314033,Chian);The Multi-User Detection and Chip Sequence Estimation for CDMA System Based on the Blind Source Separation[J];Acta Electronica Sinica;2008-07
8 Yang Chaobin,Qiu Ling,Zhu Jinkang (PCN&SS Lab.Dept.Elec.Eng.& Information Science Univ.Science & Tech.of China,Hefei 230027);A Method of Fast Detection and Recognition to DS/SS Signal[J];ACTA ELECTRONICA SINICA;1999-07
9 Zhan Ya-feng Cao Zhi-gang Ma Zheng-xin(The State Key Laboratory on Microwave and Digital CommunicationsDepartment of Electronic Engineering, Tsinghua University, Beijing 100084, China);Spread Spectrum Sequence Estimation for DSSS Signals[J];Journal of Electronics and Information Technology;2005-02
10 WEI Jing-fa1,2, HU Yong-hui1, LI Gun3(1.National Time Service Center, Chinese Academy of Sciences, Xi'an 710600;2.Graduate University of Chinese Academy of Sciences, Beijing 100039;3.University of Electronic Science and Technology, Chengdu 610054);Design and Implementation of Spread-spectrum Receiver Based on SOPC[J];Computer Engineering;2009-18
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 Mou Qing Wei Ping(School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China);Blind Despreading of Long-code DS-SS Signals with Unknown Carrier Offset[J];Journal of Electronics & Information Technology;2010-08
China Proceedings of conference Full-text Database 1 Hits
1 Wang Man-xi~(1,2) Li Hong~1 Tao Ye-rong~1 Lu Jun~1 (1.Unit 63892 Luoyang 471003;2.Institute of Communication Engineering,PLAUST Nanjing 210007);Blind estimation of PN sequence of Aperiodic DS/CDMA signals[A];[C];2009
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 ZHANG Tian qi ZHOU Zheng zhong (School of Communication and Information Eng., UEST of China, Chengdu Sichuan 610054, China);A new spectral method of periodic detection of PC sequence in lower SNR DS/SS signals[J];Chinese Journal of Radio Science;2001-04
2 ZHANG Tian-qi, ZHOU Zheng-zhong (Academy of Communication and Information Eng , UEST, Chengdu 610054,China);Detection and Estimation of DS/SS Signals by Spectra Analysis and Neural Networks[J];Systems Engineering and Electronics;2001-12
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