摘要
本文提出了一种将自适应天线阵列与横向均衡器相结合、采用局部基于码片速率的信道估计和可变步长自适应算法的宽带CDMA上行链路空-时接收机结构。通过理论分析并结合CDMA2000标准上行链路的计算机仿真,证明这种空-时接收机在瑞利衰落信道下,具有较好的收敛性能和接收性能。
A novel spatial-temporal receiver structure for wide-band CDMA reverse link is proposed. This structure is based on the technical combination of adaptive antenna array and transversal filter, together with the chip-rate channel estimation and variable step-size adaptive algorithm. Theoretical analysis and computer simulation results show that the proposed structure has better receiving performance and faster convergence speed under Rayleigh fading environments.
出处
《电路与系统学报》
CSCD
2002年第4期53-57,共5页
Journal of Circuits and Systems
基金
国家杰出青年基金项目(69725001)
