增强型罗兰授时发射机发播控制精度分析  

Analysis of broadcasting control precision of eLoran timing transmitter

作　　者：杨朝中[1] 李实锋[1] 胡召鹏[1] 闫温合 袁江斌[1] YANG Chao-zhong;LI Shi-feng;HU Zhao-peng;YAN Wen-he;YUAN Jiang-bin(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院国家授时中心,西安710600 [2]中国科学院大学,北京100049

出　　处：《时间频率学报》2021年第4期317-321,共5页Journal of Time and Frequency

基　　金：中国科学院“西部之光”人才培养计划“西部青年学者”B类资助项目(XAB2018B21);“十三五”国家重大科技基础设施资助项目(2018777)。

摘　　要：发播控制精度是发射机的关键指标之一,决定着增强型罗兰授时系统的性能。通过对影响发播控制精度误差源的分解,理论分析发播控制精度能达到的性能为30 ns。通过对BPL长波授时台实际信号的测试,分析统计发播控制精度的实际性能优于11 ns,能满足现有增强型罗兰差分授时应用方案对发播控制精度的需求。The broadcast control accuracy is one of the key indicators for the transmitter, it determines the performance of the eLoran timing system. Through decomposition of error sources which affecting the broadcast control accuracy, the performance of the broadcast control accuracy can be achieved to 30 ns by the theoretical analysis. And by the test and analyze of the actual signal from the BPL long-wave timing station, the actual performance of the broadcast control accuracy is better than 11 ns, which can satisfy the existing eLoran application solutions to transmit control precision demand.

关 键 词：增强型罗兰 授时发射机 发播控制 

分 类 号：P127.1[天文地球—天体测量]