一种基于阵列天线的联合检测信道估计新方法

A Novel Method Of Channel Estimate For Joint Detection Based On Array Antenna

本文研究了ＣＤＭＡ系统在采用阵列天线接收时进行多用户联合检测的信道估计算法。文中详细讨论了阵列天线分集增益对简化信道估计算法、结构和降低计算复杂度的原理和具体方法,分析了将阵列天线和多用户联合检测结合在一起时系统所具有的综合效能。仿真结果表明该算法是可行和有效的,为联合检测技术在三代系统中尽早实用化提供了参考。

The channel estimate algorithm of joint detection for CDMA system when the array antenna is employed is studied in this paper. Due to the diversity gain, the principle and concrete technique of simplifying the channel estimate algorithm and structure and decrease the complexity are discussed in detail. The integrative efficiency of the system which combines the array antenna with the joint detection is analyzed. The simulating results suggest that the algorithm presented in this paper is feasible and effective. It is helpful to make the technique of joint detection practicable for the third generation (3G) mobile communication system as early as possible.