Carrier synchronization for STBC OFDM systems  

作　　者：CaiJueping SongWentao LiZan GeJianhua 

机构地区：[1]DepartmentofElectronicEngineering,ShanghaiJiaotongUniversity,Shanghai200030,P.R.China [2]StateKeylaboratoryofIntegratedServicesNetworks,XidianUniversity,Xi＇an710071,P.R.China

出　　处：《High Technology Letters》2005年第1期30-34,共5页高技术通讯（英文版）

基　　金：国家高技术研究发展计划(863计划)，国家自然科学基金

摘　　要：All-digital carrier synchronization strategies and algorithms for space-time block coding (STBC) orthogonal frequency division multiplexing (OFDM) are proposed in this paper. In our scheme, the continuous pilots (CP) are saved, and the complexity of carrier synchronization is reduced significantly by dividing the process into three steps. The coarse carrier synchronization and the fine carrier synchronization algorithms are investigated and analyzed in detail. Simulations show that the carrier can be locked into tracking mode quickly, and the residual frequency error satisfies the system requirement in both stationary and mobile environments.

关 键 词：传输效率 STBC系统 OFDM系统 载波 频率 数字技术 无线通信技术 

分 类 号：TN92[电子电信—通信与信息系统]