CDMA通信中的空-时MRC和MMSE处理

摘要

本文针对两种不同的空-时数据结构，研究了直序扩频码分多址(DS-CDMA)通信中的最大比合并(MRC)和最小均方误差(MMSE)空-时Rake滤波技术，分析了空-时数据结构对空-时MRC和MMSE Rake接收机完成性能的影响，并通过计算机仿真对两种空-时数据结构对应的空-时接收机的完成性能进行了比较。%The paper deals with the analyses of performances of both the MRC and the MMSE ST Rake filters in a direct-sequence CDMA(DS-CDMA)system. Two ST data structures for ST Rake processing are investigated and their effects on the MRC Rake and MMSE Rake are analyzed. The performance comparison of the four ST Rake receivers is conducted in simulations.