摘要
本文首先分析了传统早迟门同步器的性能,指出积分区间设置的不同和早迟门积分长短的不同会影响到鉴相曲线的形状,提出了一种改进的积分结构。新的结构使环路送往VCO的控制信号可以较好的随着同步误差的变化而变化。本文根据卡尔曼滤波器[2]在快速跟踪中的优良表现,在新的位同步器中设计了新的环路滤波器。Simulink仿真的结果表明,新的位同步方法较传统的早迟门位同步器有更快的跟踪速度。
This paper firstly analyzes the performance of the early-late gate bit synchronizer, pointing that the different integration zone and integration length will lead to different PD curves, and then presents an improved integration structure. The new structure makes the control signal into VCO follow the synchronization error better in the loop. According to the reference , the paper presents a new loop filter in the new structure. The Simulink simulation shows that the new bit synchronizer bears faster tracking speed than the traditional one.
出处
《电路与系统学报》
CSCD
北大核心
2005年第6期111-114,共4页
Journal of Circuits and Systems
关键词
位同步
早迟门同步器
环路滤波
bit synchronization
early- late gate synchronizer
loop filter
