摘要
传统的NTP测试仪体积大、功耗高,并且无法满足远距离的测量,所以需要开发一款便携式NTP测试仪,以能够携带方便、运行稳定、适用于各种环境,同时能对NTP时间服务器的授时精度进行有效检测。根据系统功能及性能要求,系统方案采用ARM+FPGA的组合架构,利用嵌入式技术,采用模块化设计思想完成设计开发。实验结果表明,基于嵌入式系统设计的便携式NTP测试仪的测量精度可优于0.1 ms,满足较高的工程需求。
Traditional NTP tester has disadvantages of big size and high power consumption, and can not satisfy the needs of long distance measuring, therefore it is needed to develop a portable tester which is easy to be carried, operates stably, can be applied to various environments, and can effectively detect the time-service precision of the NTP server. To meet the requirements of system function and performance, the architecture of ARM ＋ FPGA is adopted for the system, the embedded technology is used in the design, and the idea of modular design is adopted to complete the design and development. The result shows that the measurement accuracy can be better than 0.1 ms for this portable NTP tester which is based on embedded system design, satisfying the higher engineering demand.
作者
王明
侯雷
王昕
WANG Ming HOU Lei WANG Xin(National Time Service Center, Chinese Academy of Sciences, Xi＇an 710600, China Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center, Chinese Academy of Sciences, Xi＇an 710600, China University of Chinese Academy of Sciences, Beijing 100049, China Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi＇an 710600, Chin)
出处
《时间频率学报》
CSCD
2017年第1期27-35,共9页
Journal of Time and Frequency
