一种空时多级干扰对消阵列接收机性能分析

Performance Analysis of a Novel Space-Time Multistage Array Receiver Structures for Interference Cancellation

给出了一种应用于 CDMA通信系统中的空时多级结构的接收机。由于环境中存在着判决统计偏差 ,在一个多用户的环境中 ,一个 PICs(并行干扰对消 )系统中的加权系数的表示式 ,需要进一步的修正来满足环境的变化 ;结合自适应天线技术 ,在精确的获得信道知识和不精确估计这两种情况下 ,对系统的性能做了仿真分析 。

In this paper,the authors propose a novel space time multistage array receiver structure.Because decision statistics bias exits in a CDMA system with a large number of users,the estimation of the weighting coefficients in PICs should be modified to meet the need of complex environment.Combined with Smart Antenna technique,the authors give out the performance simulation results under the assumption that the perfect estimation of channel coefficients or channel coefficients with bias should exist. And the results shows that the receiver of this kind is of more practicality.