BDS-3卫星钟在轨性能评估与分析

doi:10.11947/j.AGCS.2023.20220100

测绘学报 ›› 2023, Vol. 52 ›› Issue (3): 349-356.doi: 10.11947/j.AGCS.2023.20220100

• 大地测量学与导航 • 下一篇

BDS-3卫星钟在轨性能评估与分析

毛悦^1,2, 宋小勇^1,2, 张清华³, 阮仁桂^1,2, 王龙^1,2

1. 地理信息工程国家重点实验室, 陕西西安 710054;
2. 西安测绘研究所, 陕西西安 710054;
3. 陆军工程大学, 江苏南京 210014

收稿日期:2022-02-23 修回日期:2022-10-17 发布日期:2023-04-07
通讯作者: 张清华 E-mail:sqmha@126.com
作者简介:毛悦(1981-),女,博士,副研究员,研究方向为卫星导航及其应用。E-mail:maoyue0810@163.com
基金资助:
国家自然科学基金(41774012);江苏省自然科学基金(BK20211233)

Performance evaluation and comparison of on-orbit satellite clocks for BDS-3

MAO Yue^1,2, SONG Xiaoyong^1,2, ZHANG Qinghua³, RUAN Rengui^1,2, WANG Long^1,2

1. State Key Laboratory of Geo-Information Engineering, Xi'an 710054, China;
2. Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China;
3. Army Engineering University, Nanjing 210014, China

Received:2022-02-23 Revised:2022-10-17 Published:2023-04-07
Supported by:
The National Natural Science Foundation of China (No. 41774012);Jiangsu Natural Science Foundation (No. BK20211233)

摘要/Abstract

摘要： 目前,国际主要卫星导航系统搭载的原子钟包含铷钟、氢钟、铯钟3大类。新型国产星载铷原子钟、氢原子钟的应用是BDS-3相对于BDS-2的重要改变之一。BDS-3正式开通运行以来,已经积累了丰富的在轨数据,本文采用2 a的精密钟差数据评估了新型国产原子钟的在轨性能,并与国际主流星载原子钟的性能进行对比,分析了国产原子钟在轨长期演化规律。结果表明,北斗氢钟具有较低的在轨漂移率和较高的稳定度,与Galileo系统星载氢钟为同一精度水平,北斗铷钟在轨性能稳步提高,跻身世界先进行列。

关键词: 星载原子钟, 在轨性能评估, 准确度, 漂移率, 稳定度

Abstract: At present, the space-borne atomic clocks carried by major global satellite navigation systems mainly include rubidium atomic clocks, hydrogen atomic clocks and cesium atomic clocks. Compared with BDS-2, one of the important changes of BDS-3 is the application of new domestic space-borne rubidium atomic clocks and hydrogen atomic clocks. Since BDS-3 was officially put into operation, large amounts of data have been accumulated. In this paper, two years of precise clock offset data is used to verify the on-orbit performance of the new domestic atomic clock. And the performances are compared with the mainstream space-borne atomic clocks of GNSS. The long term variation characteristic of BDS-3 atomic clocks are analyzed. It's showed the BDS-3 hydrogen atomic clocks have a smaller drift rate and better stability which close to the performance of Galileo clock, and the performance of onboard rubidium atomic clocks of BDS-3 is improving continually which is up to the world advance level.

Key words: space-borne atomic clock, on-orbit performance evaluation, accuracy, drift rate, stability

中图分类号:

P228

毛悦, 宋小勇, 张清华, 阮仁桂, 王龙. BDS-3卫星钟在轨性能评估与分析[J]. 测绘学报, 2023, 52(3): 349-356.

MAO Yue, SONG Xiaoyong, ZHANG Qinghua, RUAN Rengui, WANG Long. Performance evaluation and comparison of on-orbit satellite clocks for BDS-3[J]. Acta Geodaetica et Cartographica Sinica, 2023, 52(3): 349-356.

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BDS-3卫星钟在轨性能评估与分析

Performance evaluation and comparison of on-orbit satellite clocks for BDS-3

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