| 高精度星间测距与超稳振荡器研究 |
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| 作者姓名： | 佘世刚 王锴 周毅 马沛 黄欹昌 |
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| 作者单位： | 兰州空间物理研究所,兰州730000 |
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| 摘 要： | 高精度K频段微波星间测距系统（KBR）采用双路微波测距技术，测量精度可达到1μm／s，是地球重力场测量卫星的三大有效载荷之一。作为整个系统时间基准的超稳定振荡器（USO），是实现KBR微米级测量精度的关键。文章在研究KBR测距技术的基础上，对USO进行了研究和设计，研制成功的USO的短期频率稳定度达到了5×10^-13／s（Allan方差），达到了指标要求。
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| 关 键 词： | 高精度星间测距系统 KBR 超稳振荡器 USO 稳定度 |
The Study of High Accuracy Inter-satellite Ranging Technology and Ultra Stable Oscillator |
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| Institution: | She Shigang Wang Kai Zhou Yi Ma Pei Huang Yichang (Lanzhou Institute of Space Technology and Physics, Lanzhou 730000, China) |
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| Abstract: | The accuracy of high accuracy KBR system （K Band Ranging System）could reach 1 μm/s based on dual-one-way microwave-ranging technology. The KBR system is one of the three major payload of gravity field measurement satellite. As the frequency time standard of the whole system, the USO（ Ultra-stable oscillators）is the key technology for the measurement accuracy. Based on study of the KBR ranging technology, the USO is researched and designed. The short-term frequency stability of the successfully developed USO, have reached 5 × 10^-13/s （Allan deviations）,which can completely met the requirement of this system. |
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| Keywords: | High accuracy inter-satellite ranging system KBR（ K Band Ranging System） USO（Ultra-sta- ble oscillators） Stability |
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