超高精度的甚长基线干涉相位时延推导法及其在我国的应用前景
High-Accuracy determination of very long baseline interferometry phase delays and its applications in China's future missions
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摘要: 文章简要介绍了同波束甚长基线干涉(VLBI)观测法和相位时延推导法,报道了上海-乌鲁木齐基线的误差为0.0005m的差分相位时延的观测结果,介绍了"萤火1号"和"福布斯"探测器的同波束VLBI观测技术及正在研究的相位时延推定新方法,展望了超高精度的VLBI相位时延在中国深空探测中的应用前景.
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关键词:
- "萤火1号"火星探测器(YH-1) /
- 同波束 /
- 甚长基线干涉(VLBI) /
- 相位时延 /
- 精密定轨
Abstract: This paper reviews the methods of same-beam very long baseline interferometry (VLBI) observations and the estimation of high-accuracy phase delay. We report the observation results of the phase delay on the Shanghai-Urumqi baseline, with a measurement error as small as 0.0005m. We also describe the same-beam VLBI observation teechniques for the Chinese Yinghuo-1 and Russian Phobos-Grunt spacecrafts, and a new method to estimate phase delay. Prospective applications in China's future missions are surveyed. -
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