2-D RAKE RECEIVER BASED ON SPACE-TIME CHANNEL PARAMETER ESTIMATION

作     者：Jiang Bofeng Zhang Jianguo Yin Qinye (Inst. of Info. Eng., School of Electron, and Info. Eng., Xi’an Jiaotong Univ., Xi’an 710049) Jiang Bofeng Zhang Jianguo Yin Qinye (Inst. of Info. Eng., School of Electron, and Info. Eng., Xi’an Jiaotong Univ., Xi’an 710049)

作者机构：Inst. of Info. Eng. School of Electron. and Info. Eng. Xi’an Jiaotong Univ. Xi’an 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：2001年第18卷第2期

页      面：127-134页

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：Supported in part by the National Nature Sciences  Doctor Education and HuaWei Corporation Foundation 

主　　题：2-D RAKE Space-time channel Spatial signature vector 

摘      要：2-D RAKE receiver is an efficient way to realize the space-time processing for CDMA systems with aperiodic spreading codes. The Direction Of Arrival (DOA) and the relative time delay of every user s multipath must be known to realize the 2-D RAKE receiver. In the third generation CDMA mobile communication system, auxiliary pilot channel is used in the uplink channels The different user s Vector Channel Impulse Response (VCIR) can be estimated from the pilotichannel easily. The VCIR contains spatial and temporal information. In this paper,by utilizing the known pulse shape function, a parameter matrix method used to estimate the Spatial Signature Vector (SSV) and the relative time delay is proposed in frequency *** DOA can be estimated from the SSV. By reconstructing the SSV and utilizing approximate Capon space filter, the performance of the 2-D RAKE receiver with uniform circular array can be improved with a little additional computation work.