[1] Liang Y F, Xu J N, Wu M et al. Research progress on optical fiber time-frequency synchronization technology[J]. Laser & Optoelectronics Progress, 57, 050004(2020).

[2] He Y B, Baldwin K G H, Orr B J et al. Long-distance telecom-fiber transfer of a radio-frequency reference for radio astronomy[J]. Optica, 5, 138-146(2018).

[3] Dewdney P E, Hall P J, Schilizzi R T et al. The square kilometre array[J]. Proceedings of the IEEE, 97, 1482-1496(2009).

[4] Hauschild A, Montenbruck O, Sleewaegen J M et al. Characterization of compass M-1 signals[J]. GPS Solutions, 16, 117-126(2012).

[5] Yu L D, Zhu J S, Lu Y. Research progress of high precision free space optical time-frequency reference transfer technology[J]. Laser & Optoelectronics Progress, 60, 0312009(2023).

[6] Yu H, Xu P, Song G et al. Research progress on time-frequency synchronization network based on optical fiber[J/OL]. Laser & Optoelectronics Progress(1). https://link.cnki.net/urlid/31.1690.tn.20250324.1706.108

[7] Xiao X D, Li S Y, Peng S W et al. Photonics-based wideband distributed coherent aperture radar system[J]. Optics Express, 26, 33783-33796(2018).

[8] Hong F L. Optical frequency standards for time and length applications[J]. Measurement Science and Technology, 28, 012002(2017).

[9] Yuan Y B. The research on fiber-based time and frequency dissemination and sychronization technique[D], 8(2017).

[10] Li D L, Cheng Q M, Zhang B F et al. Research on the impact of optical fiber link delay fluctuation on frequency transfer stability[J]. Laser & Optoelectronics Progress, 51, 010602(2014).

[11] Kareem F Q, Zeebaree S R M, Dino H I et al. A survey of optical fiber communications: challenges and processing time influences[J]. Asian Journal of Research in Computer Science, 7, 48-58(2021).

[12] Narbonneau F, Lours M, Bize S et al. High resolution frequency standard dissemination via optical fiber metropolitan network[J]. Review of Scientific Instruments, 77, 064701(2006).

[13] Chen Y F, Wang B. Fiber-optic time and frequency synchronization technology and its applications[J]. Chinese Journal of Scientific Instrument, 45, 47-62(2024).

[14] Śliwczyński Ł, Krehlik P, Buczek Ł et al. Active propagation delay stabilization for fiber-optic frequency distribution using controlled electronic delay lines[J]. IEEE Transactions on Instrumentation and Measurement, 60, 1480-1488(2011).

[15] Weng J. Research on phsae stabilized transmission of microwave signals over optical fiber link[D], 16(2016).

[16] Lopez O, Amy-Klein A, Lours M et al. High-resolution microwave frequency dissemination on an 86-km urban optical link[J]. Applied Physics B, 98, 723-727(2010).

[17] Ben-Amram A, Stern Y, London Y et al. Stable closed-loop fiber-optic delay of arbitrary radio-frequency waveforms[J]. Optics Express, 23, 28244-28257(2015).

[18] Zhao X Y, Lu L, Wu C X et al. Ring fiber network based multipoint time-frequency dissemination method with high precision[J]. Acta Optica Sinica, 39, 0606002(2019).

[19] Hu C, Luo B, Pan W et al. Multipoint stable radio frequency long distance transmission over fiber based on tree topology, with user fairness and deployment flexibility[J]. Optics Express, 28, 23874-23880(2020).

[20] Zhu X, Wang B, Guo Y C et al. Robust fiber-based frequency synchronization system immune to strong temperature fluctuation[J]. Chinese Optics Letters, 16, 010605(2018).

[21] Zhang H, He L, Li X et al. Wideband microwave frequency distribution for multi-access along a single fiber link[J]. Journal of Lightwave Technology, 38, 1688-1692(2020).

[22] Lee W K, Stefani F, Bercy A et al. Hybrid fiber links for accurate optical frequency comparison[J]. Applied Physics B, 123, 161(2017).

[23] Wang X, Wei W, Ye B et al. Ultra-stable wideband signal dissemination for distributed systems[J]. Journal of Lightwave Technology, 41, 7177-7182(2023).

[24] Gao H. Research on ultra-stable frequency transfer over long-distance fiber link​[D], 3(2023).

[25] Dong Y, Wei W, Wang X et al. Stable transmission technology of optically carried microwave signals via optical fiber for antenna array[J]. Acta Optica Sinica, 43, 1506002(2023).

[26] Jin Z Y, Chen Z Y, Wu K et al. Node-downloadable frequency transfer system based on a mode-locked laser with over 100 km of fiber[J]. Optics Express, 31, 39681-39694(2023).