OQPSK载波相位捕获算法的改进及数字化实现  

Improvement and digitalization of OQPSK carrier phase acquisition algorithm

作　　者：吴玉成[1] 高珊[1] 侯剑辉[1] 

机构地区：[1]重庆大学通信工程学院,重庆400044

出　　处：《电路与系统学报》2005年第5期120-124,共5页Journal of Circuits and Systems

基　　金：重庆市科委自然科学基金资助项目(2005BB2194)

摘　　要：论文研究了一种OQPSK数据辅助式载波相位捕获算法。考虑到实际应用中信道噪声对算法性能的影响,对原算法进行了改进,加入了平均运算及保护机制,完成了算法的FPGA实现。仿真及实际运行结果表明:该方案简单易行,无相位模糊问题,仅需少量前导训练码就能快速捕获载波相位,精度较高,满足无线高速突发通信系统快速相位捕获的需要。A data aided carrier phase acquisition algorithm for to acquisition performance in practical system, an improved Simulation and FPGA implement results indicate that scheme OQPSK is studied. Take into account of the influence of noise algorithm with average and protective modules is proposed. proposed has the advantages of easy to realization, no phase ambiguity, acquisition in few preambles, high accuracy and meet the need of fast carrier phase acquisition in burst wireless broadband communication systems.

关 键 词：偏移四相相移键控 相位捕获 数字化 

分 类 号：TN911[电子电信—通信与信息系统]