高动态通信接收机载波同步技术研究  

Research on carrier synchronization technology of high dynamic communication receiver

作　　者：吴健 崔森 吴必旗 Wu Jian Cui Sen Wu Biqi(Nanjing Panda Handa Electronic Co., Ltd., Nanjing 210014, China)

机构地区：[1]南京熊猫汉达科技有限公司,江苏南京210014

出　　处：《无线互联科技》2016年第20期10-11,74,共3页Wireless Internet Technology

摘　　要：高机动性造成的多普勒效应给高机动平台的无线通信产生较大的多普勒频偏和多普勒频偏变化率,严重影响接收机的相干解调性能。文章通过对高动态信号、三阶锁相环和二阶锁频环进行建模仿真分析,提出了FLL和PLL辅助结合的解调方式方案,能够满足捕获及时性与跟踪精确性要求。Large Doppler frequency offset and Doppler frequency shift rate on wireless communication of high mobility platform for moving terrace from Doppler effect caused by high motility, seriously influencing coherent demodulation.This paper puts forward a demodulation scheme of aided combination of FLL and PLL through modeling and simulation, and making analysis of high dynamic signal, three order and two order frequency locked loop PLL, the scheme can be able to meet the requirement of timeliness and tracking accuracy.

关 键 词：无线通信 高动态 接收机 载波同步 

分 类 号：TN851[电子电信—信息与通信工程]