【作者】 陈小鱼； 齐建中； 宋鹏；

【Author】 CHEN Xiao-yu 1 ,QI Jian-zhong 2 ,SONG Peng 3 1.College of Information Engineering,North China University of Technology,Beijing,China 2.College of Information Engineering,North China University of Technology,Beijing,China 3.College of Information Engineering,North China University of Technology,Beijing,China

【机构】 北方工业大学信息工程学院；

【摘要】 精确授时不仅在相对论研究、地球动力学研究等基础研究领域有重要的作用,而且在航空航天、深空通讯、信息高速公路、导航通信、电力传输等国防和国民经济建设中也有广泛的应用。本文研究了GPS接收机精确授时系统结构。提出了一种新型GPS授时模式,采用锁频辅助锁相模式构成授时闭合回路。文中详细介绍了环路的结构。通过这种方式实现的授时,在40MHz主频下精度可以达到。与传统的授时方式相比精度提高了4倍。通过长时间的测试,结果证明了这种算法的有效性。更多还原

【Abstract】 Precise time transfer not only has an important role in basic research areas such as theory of relativity research and geodynamics research,but also has such a wide range of applications in the construction of national defense and the national economy such as aerospace,deep space communication,information superhighway, navigation communication and electric power transmission.The structure of GPS precise time transfer system is studied in this paper.The closed circuit of the phase-locked loop mode is used in this paper.It details the structure of the phase-locked loop.In this way,we can achieve the accuracy of in 40MHz frequency.Compared with the traditional method of time transfer,the accuracy has been improved four times.According to a long period of testing,the results proved the effectiveness of this algorithm.更多还原