动态环境下基于FLL/PLL相结合的载波跟踪  

FLL/PLL Combination-based Approach for Carrier Tracking in Dynamic Environment

作　　者：陈晓鹏[1] 沈锋[1] 徐定杰 

机构地区：[1]哈尔滨工程大学,黑龙江哈尔滨150001

出　　处：《弹箭与制导学报》2004年第S1期171-173,177,共4页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：黑龙江自然科学基金(F0212)

摘　　要：在分析 PLL 和 FLL 环路各自优点的基础上,提出了一种 FLL/PLL 相结合的载波跟踪方法,分析了热噪声及载体动态性对载波跟踪环路的影响,得出了环路设计的最佳带宽。理论分析和仿真结果表明,该方法能快速地、精确地实现载波的跟踪。Based on analyzing the advantages of PLL and FLL,a new method of carrier tracking,which is combining FLL with PLL is presented in this paper.At the same time,this article analyze the effect of thermal noise and vehicle dynamics on the carrier tracking loop,and give the optimal handwidth of the carrier tracking loop .The analysis and simulations show that this method could realize the carrier tracking quickly and precisely.

关 键 词：FLL PLL 载波跟踪 环路带宽 

分 类 号：TN953[电子电信—信号与信息处理]