摘要
为减少温度对晶振频率漂移的影响,提高主从时钟同步精度,提出使用PID反馈控制系统控制从时钟速率的方法对温度产生的频率漂移进行补偿,使用量子遗传算法自适应优化PID控制器的参数。Simulink仿真结果表明,该方法可有效降低温度对频率漂移的影响。仿真结果表明,与其它算法相比,该算法收敛速度有明显优势,满足IEEE 1588协议对时钟同步系统的要求。
To reduce the effects of temperature on the crystal frequency drift, improve the master-slave clock synchronization ac- curacy, the PID feedback control system was proposed to control the slave clock rate to compensate frequency drift caused by high temperature, and quantum genetic algorithm was adopted to optimize PID controller parameters. Results of Simulink simu- lation show that this method can effectively reduce the effect of temperature on frequency drift. It is verified that the convergence speed of the algorithm has obvious advantages compared with other algorithms, which meets the requirements of IEEE 1588 clock synchronization protocol system.
出处
《计算机工程与设计》
北大核心
2017年第4期1035-1039,共5页
Computer Engineering and Design
基金
四川省科技支撑计划基金项目(2014GZ0010
2014GZ0083)
关键词
IEEE
1588
时间同步
高温
频率漂移
量子遗传算法
IEEE 1588
time synchronization
high temperature
frequency drift
quantum genetic algorithm
