基于DDS的高速定时同步方法

摘要

定时同步是高速数据传输的关键技术也是难点问题.在对锁相环数字化设计、DDS原理结构和参数设计进行研究的基础上,提出了一种基于DDS的高速定时同步方法,对该定时同步方法的原理结构框图进行了详细的论述,对具体参数进行了设计.采用这种定时同步方法的高速解调器进行了原理实验测试,取得了满意的结果,所提出的定时同步方法对高速数据传输方案设计提供了参考.%Timing synchronization is a key technology in high rate transmission. The phase locked loop digital design, the principle of DDS structure and parameter design are also analyzed. A high speed timing synchronization method based on DDS is put forward. The principle block diagram is discussed in detail. The specific parameters are designed. A high speed demodulator applied to this timing synchronization method has been tested. The result is satisfied. The timing synchronization method is a design reference for high-speed data transmission.