LU Feng-bo, HUANG Zhi-tao, JIANG Wen-li. Blind estimation of spreading sequence of CDMA signals based on Fast-ICA and performance analysis[J]. 2011, 32(8): 136-142.
LU Feng-bo, HUANG Zhi-tao, JIANG Wen-li. Blind estimation of spreading sequence of CDMA signals based on Fast-ICA and performance analysis[J]. 2011, 32(8): 136-142.DOI:
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.