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基于衛(wèi)星雙向時間比對的無中心站間時間同步
電子技術(shù)應(yīng)用
仇三山1,于雯2,孫長軍2,王宏博3
1.中國電子科技集團公司第十研究所;2.北京跟蹤與通信技術(shù)研究所;3.北京無線電計量測試研究所
摘要: 針對多站分布式協(xié)同站間高精度時間同步關(guān)鍵問題,在詳細介紹衛(wèi)星雙向時間比對的基本原理和精度分析基礎(chǔ)上,設(shè)計了一種無中心多站衛(wèi)星雙向比對邏輯架構(gòu)和多站時間同步處理算法,充分考慮硬件資源約束,并提供時差測量數(shù)據(jù)冗余,避免了因某個站故障造成的全系統(tǒng)時間同步功能失效,提高系統(tǒng)時間同步的魯棒性和靈活性?;诰軉吸c定位技術(shù)進行了異地遠程衛(wèi)星雙向時間同步精度驗證,試驗結(jié)果表明時間同步精度優(yōu)于6 ns。
中圖分類號:TN249 文獻標志碼:A DOI: 10.16157/j.issn.0258-7998.234744
中文引用格式: 仇三山,于雯,孫長軍,等. 基于衛(wèi)星雙向時間比對的無中心站間時間同步[J]. 電子技術(shù)應(yīng)用,2024,50(6):107-110.
英文引用格式: Qiu Sanshan,Yu Wen,Sun Changjun,et al. The no-center time synchronization based on two-way satellite time transfer[J]. Application of Electronic Technique,2024,50(6):107-110.
The no-center time synchronization based on two-way satellite time transfer
Qiu Sanshan1,Yu Wen2,Sun Changjun2,Wang Hongbo3
1.The 10th Research Institute of China Electronics Technology Group Corporation;2.Beijing Institute of Tracking and Telecommunications Technology;3.Beijing Institute of Radio Metrology and Measurement
Abstract: Aiming at the key problem of high precision time synchronization between multi-station distributed cooperative stations,the basic principle and accuracy analysis of the two-way satellite time transfer are introduced in detail. A kind of no-center satellite two-way time transfer architecture and time synchronization algorithm are designed. Considering hardware resource constraints and providing redundant time difference measurement data, it avoids the failure of the entire system time synchronization function caused by a station failure,the robustness and flexibility of time synchronization are improved. Based on the PPP(Precise Point Positioning),the time synchronization accuracy of long-range Two-way satellite time transfer if verified,better than 6 ns.
Key words : satellite two-way time transfer;no-center;time synchronization;system time;PPP

引言

站間時間同步是多站分布式協(xié)同工作的前提,如多站協(xié)同導(dǎo)航、多站時差定位等均需要實現(xiàn)各個站之間的高精度時間同步,以滿足系統(tǒng)應(yīng)用精度要求。實現(xiàn)多站遠程時間比對的典型方法有光纖雙向時間比對法、衛(wèi)星雙向時間比對法、導(dǎo)航衛(wèi)星快速共視法。

本文主要針對基于衛(wèi)星雙向時間比對的多站間高精度時間同步進行設(shè)計與精度驗證進行論述。


本文詳細內(nèi)容請下載:

http://ihrv.cn/resource/share/2000006040


作者信息:

仇三山1,于雯2,孫長軍2,王宏博3

(1.中國電子科技集團公司第十研究所,四川 成都 610036;

2.北京跟蹤與通信技術(shù)研究所,北京 100094;

3.北京無線電計量測試研究所,北京 100854)


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