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在异步DS_CDMA系统中,由于“远-近”问题的影响,给系统参数(传播时延、幅度变化、相位变化)的估计带来很大的不利.本研究探讨了存在“远-近”问题情况下,异步DS_CDMA系统中的参数估计问题,并提出了一种有效算法.
In asynchronous DS_CDMA systems, the estimation of system parameters (propagation delay, amplitude variation, phase change) is greatly disadvantageous due to the influence of the “far-near” problem. This study explores the problem of parameter estimation in asynchronous DS_CDMA systems with “far-near” problems and proposes an efficient algorithm.