| 高精度秒脉冲信号的产生 |
| |
| 引用本文： | 刘文焘,张亮,张向征. 高精度秒脉冲信号的产生[J]. 飞行器测控学报, 2011, 0(6): 31-33 |
| |
| 作者姓名： | 刘文焘 张亮 张向征 |
| |
| 作者单位： | [1]西南电子技术研究所,成都610036 [2]中国空间技术研究院,北京100094 [3]解放军61081部队,北京100094 |
| |
| 摘 要： | 通过介绍高精度秒脉冲信号的实现原理以及实现中的关键技术,分析了如何减小由码跟踪环路测量误差导致的秒脉冲信号随机抖动误差,提出了减小由直接数字频率合成器导致的秒脉冲信号系统钟模糊误差的实现方法。最后给出了在＂北斗＂一号卫星标校机工程应用中的实际性能,统计精度（1倍标准差）为1.7ns,保证了标校设备能高精度地服务于BD-1导航定位系统。
|
| 关 键 词： | 秒脉冲信号 直接数字频率合成器 “北斗”一号卫星 |
Generation of High Precision PPS Signal |
| |
| LIU Wentao,ZHANG Liang,ZHANG Xiangzheng. Generation of High Precision PPS Signal[J]. Journal of Spacecraft TT&C Technology, 2011, 0(6): 31-33 |
| |
| Authors: | LIU Wentao ZHANG Liang ZHANG Xiangzheng |
| |
| Affiliation: | 1.Southwest Institute of Electronic Technology,Chengdu 610036;2.China Academy of Space Technology,Beijing 100094;3.PLA Unit 61081,Beijing 100094) |
| |
| Abstract: | Following review of the theory and key technologies for generation of high precision PPS signals,this paper explores ways to reduce random jitter errors of PPS signals caused by code tracking loop measurement errors and proposes an approach by reducing clock fuzzy errors of PPS signals caused by the direct digital synthesizer.Finally,the performance of the calibration system used in BD-1 project is given.A statistical accuracy（1σ） of 1.7ns is achieved and it well meets the requirements of BD-1 satellite navigation system. |
| |
| Keywords: | Pulses Per Second（PPS） Direct Digital Synthesizer（DDS） Beidou-1 Satellite |
| 本文献已被 维普 等数据库收录！ |
|
