A MATCHED FILTER BANK BASED DOA ESTIMATION FOR ASYNCHRONOUS MULTIPATH CDMA CHANNELS  

作　　者：YangWei ChenJunshi TanZhenhui TakisMathiopoulos 

机构地区：[1]SchoolofElectronicsandInformationEng.,BeijingJiaotongUniversity,Beijing100044,China [2]DeptofElectricalandComputerEng.,Univ.ofBritishColumbia,Vancouver,BC,V6T1Z4,Canada

出　　处：《Journal of Electronics(China)》2005年第3期220-228,共9页电子科学学刊（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.60372014).

摘　　要：In this paper, a Direction Of Arrival (DOA) estimation algorithm is proposed for multiuser signals through uplink asynchronous multipath Code Division Multiple Access (CDMA) channels. The algorithm is based directly on the correlation matrices of matched filter bank outputs of desired user’s multipath signals and it does not require that the elements of base station antenna array outnumber the multipath signals, which is necessary for the conventional sub-space based direction-finding algorithm. Simulation results show that the proposed algorithm estimates the DOA of multipath signals effectively and acceptably. The proposed algorithm has the prominent advantages of low complexity, simpleness and practicality, which make it much more suitable for practical application.In this paper, a Direction Of Arrival (DOA) estimation algorithm is proposed for multiuser signals through uplink asynchronous multipath Code Division Multiple Access (CDMA) channels. The algorithm is based directly on the correlation matrices of matched filter bank outputs of desired user's multipath signals and it does not require that the elements of base station antenna array outnumber the multipath signals, which is necessary for the conventional sub-space based direction-finding algorithm. Simulation results show that the proposed algorithm estimates the DOA of multipath signals effectively and acceptably. The proposed algorithm has the prominent advantages of low complexity, simpleness and practicality, which make it much more suitable for practical application.

关 键 词：Code Division Multiple Access(CDMA) Direction Of Arrival(DOA) estimation Asynchronous multipath channel 

分 类 号：TN929.533[电子电信—通信与信息系统]