猝发式直扩系统载波捕获技术研究  

Research of Carrier Acquisition in Burst-mode DSSS System

作　　者：吴铭宇[1] 张福洪[1] 朱小辉[1] 易志强[1] 

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2012年第5期100-103,共4页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：浙江省教育厅资助项目(Y201018592)

摘　　要：为了解决猝发式直扩系统中大频偏情况下信号载波的快速捕获问题,该文提出了一种集扫频、匹配滤波器和FFT频率估计技术相结合的快速载波捕获方案。在理论上对该方案进行详细分析后,基于MATLAB平台进行算法仿真验证。结果表明,该方案可以满足系统设计要求,具有较高的实际应用价值。A scheme is proposed in this paper to solve the problem of carrier acquisition under large frequency offset circumstance in burst-mode DSSS system based on sweeping frequency,match filter and FFT frequency estimation.The scheme is simulated and validated in feasibility with MATLAB platform after detailed theoretical analysis on it.The results show that the scheme can meet the system design,which is of much practical value.

关 键 词：多普勒效应 扫频 匹配滤波器 频率估计 载波捕获 

分 类 号：TN92[电子电信—通信与信息系统]