Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Blind estimation of spreading sequence of CDMA signals based on Fast-ICA and performance analysis

LU Feng-bo,HUANG Zhi-tao,JIANG Wen-li(School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China)  
The DS-CDMA signals can be divided into two types,the short-code(SC) and the long-code(LC) DS-CDMA signal.The existing methods are only used to estimate spreading sequences of SC-DS-CDMA signals,which cannot work for the LC-DS-CDMA signals.A new blind estimation algorithm for DS-CDMA signals based on fast independent com-ponent analysis was proposed by analyzing the mathematical model of the LC-DS-CDMA signal and the estimation per-formance of the proposed algorithm in theory was deduced.Moreover,the proposed method not only applies to the LC-DS-CDMA but also SC-DS-CDMA signals.The theoretical analysis and simulation results verify the effectiveness of the proposed algorithm.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved