基于阵列天线的联合检测信道估计实用化算法研究

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实用化算法,较好地解决了现有许多算法不能满足实时性处理要求的难题.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,为联合检测技术在实际系统中尽早实用化提供了参考.

Research on the Practical Algorithm of Channel Estimate for Joint Detection Based on Array Antenna

Smart antenna and joint detection are the key techniques in the third generation (3G) mobile communication system.But their algorithms are too complicated to meet the requirement of real-time processing.This paper presents a new channel estimate algorithm to solve the problem.With the diversity gain,the principle and technique of simplifying the channel estimate algorithm and structure and how to reduce the complexity are discussed.The integrative efficiency of the system combining the array antenna with the joint detection is analyzed.The simulation results show that the algorithm is feasible and effective.It is helpful to make the technique of joint detection practicality in real system as early as possible.