| 基于FPGA与TDC的GPS-铷钟时间同步系统 |
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| 引用本文： | 杨俊,陈智勇,余钫,汤超,盛荣武.基于FPGA与TDC的GPS-铷钟时间同步系统[J].宇航计测技术,2012,32(1):30-33. |
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| 作者姓名： | 杨俊 陈智勇 余钫 汤超 盛荣武 |
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| 作者单位： | 中国科学院武汉物理与数学研究所,武汉430071 |
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| 摘 要： | 描述了一种高精度的GPS-铷钟时间频率同步系统,系统输出标准10MHz频率,同时输出高精度的1PPS同步时间信号,在GPS信号驯服下系统同步精度可达到7.2ns,输出频率准确度优于1E-12。论文阐述了系统的原理,给出了测试数据,结果表明,系统指标满足工程应用要求。
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| 关 键 词： | 全球定位系统 铷原子钟 时间同步 现场可编程门阵列 时间数字转换器 |
A GPS-Rubidium Clock Synchronization System based on FPGA and TDC |
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| YANG Jun,CHEN Zhi-yong,YU Fang,TANG Chao,SHENG Rong-Wu.A GPS-Rubidium Clock Synchronization System based on FPGA and TDC[J].Journal of Astronautic Metrology and Measurement,2012,32(1):30-33. |
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| Authors: | YANG Jun CHEN Zhi-yong YU Fang TANG Chao SHENG Rong-Wu |
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| Institution: | ( Wuhan Institute of Physics and Mathematics, Chinese Academy of Science, Wuhan 430071 ) |
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| Abstract: | In this paper, a high-precision time and frequency synchronization system is proposed, which works with GPS and GPS-disciplined rubidium clock. The system outputs a standard 10MHz frequency and a high-precision 1PPS time signal. With the tameness of GPS, the synchronization accuracy of the system can be reached 7.2 ns, and the accuracy of the standard 10MHz can be better than 1 E-12. Analysis of the principle and the implementation of the system are presented in detail, and test data is given. The result demonstrates that the indicators of the system meet the engineering requirements. |
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| Keywords: | GPS Rubidium clock Time synchronism FPGA TDC |
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