A High-Precision Frequency Synchronization Method Based on a Novel Geostationary Communication Satellite Phase-Locked Transponder
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| Pubblicato in: | Remote Sensing vol. 17, no. 7 (2025), p. 1280 |
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| Autore principale: | |
| Altri autori: | , , , , , , |
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MDPI AG
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| Accesso online: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 024 | 7 | |a 10.3390/rs17071280 |2 doi | |
| 035 | |a 3188880513 | ||
| 045 | 2 | |b d20250101 |b d20251231 | |
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| 100 | 1 | |a Tang, Xueyi |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 245 | 1 | |a A High-Precision Frequency Synchronization Method Based on a Novel Geostationary Communication Satellite Phase-Locked Transponder | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Equipping satellites with a series of high-precision frequency references is essential; however, even advanced active hydrogen masers can often be too heavy and expensive for the current satellite payload constraints. Moreover, in geostationary Earth-orbit communication satellites lacking atomic clocks, onboard oscillators can degrade the performance of time–frequency transmission methods. To address these challenges, this study proposes a novel phase-locked transponder that leverages Einstein’s synchronization theory and real-time carrier-phase compensation to improve the transmission performance of satellite frequency transfer systems while mitigating the noise from onboard satellite oscillators. Notably, this requires only simple modifications to the existing transponder structure. By replicating the high-precision atomic frequency standards from ground stations to satellites, the proposed system achieves enhanced frequency synchronization without additional onboard clocks. The feasibility of the satellite-to-ground link was validated through both a theoretical analysis and an experimental verification. Specifically, ground experiments demonstrated a reproducibility of 6.33 ps (1σ) over a 24 h period, with a long-term frequency stability of 3.36 × 10−16 at an average time of 10,000 s under dynamic conditions, showcasing the potential of this approach for advanced frequency synchronization. This paper presents a cost-effective and scalable solution for enhancing frequency synchronization in geostationary satellites, improving communication reliability, supporting advanced scientific and navigational applications, and enabling the development of high-precision, space-air-ground integrated time–frequency synchronization networks. | |
| 653 | |a Global positioning systems--GPS | ||
| 653 | |a Synchronous satellites | ||
| 653 | |a Oscillators | ||
| 653 | |a Accuracy | ||
| 653 | |a Hydrogen masers | ||
| 653 | |a Theoretical analysis | ||
| 653 | |a Communication satellites | ||
| 653 | |a Communication | ||
| 653 | |a Clocks & watches | ||
| 653 | |a Time-frequency analysis | ||
| 653 | |a Synchronization | ||
| 653 | |a Transponders | ||
| 653 | |a Frequency standards | ||
| 653 | |a Crystal oscillators | ||
| 653 | |a Frequency stability | ||
| 653 | |a Time synchronization | ||
| 653 | |a Real time | ||
| 653 | |a Satellites | ||
| 653 | |a Atomic clocks | ||
| 653 | |a Ground stations | ||
| 653 | |a Frequency synchronization | ||
| 653 | |a Artificial satellites | ||
| 700 | 1 | |a Yan, Chenhao |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 700 | 1 | |a Sun, Haiyuan |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 700 | 1 | |a Meng, Lijiaoyue |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 700 | 1 | |a He, Yibin |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 700 | 1 | |a Liu, Rui |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 700 | 1 | |a Wang, Shiguang |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China | |
| 700 | 1 | |a Wang, Lijun |u Department of Precision Instrument, Tsinghua University, Beijing 100084, China; <email>xy-tang20@mails.tsinghua.edu.cn</email> (X.T.); <email>yanch19@tsinghua.org.cn</email> (C.Y.); <email>shy22@mails.tsinghua.edu.cn</email> (H.S.); <email>mljy21@mails.tsinghua.edu.cn</email> (L.M.); <email>hyb23@mails.tsinghua.edu.cn</email> (Y.H.); <email>liu-r24@mails.tsinghua.edu.cn</email> (R.L.); <email>lwan@tsinghua.edu.cn</email> (L.W.); State Key Laboratory of Precision Space-Time Information Sensing Technology, Beijing 100084, China; Department of Physics, Tsinghua University, Beijing 100091, China | |
| 773 | 0 | |t Remote Sensing |g vol. 17, no. 7 (2025), p. 1280 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
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| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3188880513/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |