摘要
卫星驯服时钟系统由于具有精度高、成本低的特点获得广泛应用.本文对卫星授时系统现状进行了分析;对时钟驯服中相位差测量、秒抖动处理和频率校准各环节的技术现状进行了阐述;建立了采用P I调节器的时钟驯服模型,对其驯服过程进行了分析;对时钟驯服的电路实现方法进行了分类和总结,推荐了一种基于FPGA的实现方法,并对卫星驯服时钟系统未来的发展进行了阐述.
The satellite disciplined clock system is widely applied due to its high accuracy and low cost. This paper provides a review of the satellite disciplined clock. Phase error measurement, pulse noise and frequency calibration are surveyed in detail. A disciplined clock model based on PI controller is built and the disciplining process is analyzed. Implement method is also surveyed. A prototype based on FPGA is proposed. At last the development trend is discussed.
出处
《测试技术学报》
2009年第5期396-401,共6页
Journal of Test and Measurement Technology
关键词
GPS系统
北斗系统
卫星驯服时钟系统
授时
校频
GPS（global positioning system）
beidou system
satellite disciplined clock system
timing
frequency calibration
