Mr. Wang Zihao Profile

Wang Zihao

at Beijing Institution of Space Mechanics&Electricity

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Proceedings Article | 2 December 2020 Paper

Research on high precision laser phase measurement technology for space-based precision ranging

Zi-hao Wang, Zhong-kai Guo, Xu-ling Lin, Yong-chao Zheng

Proceedings Volume 11717, 117172X (2020) https://doi.org/10.1117/12.2587445

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Space gravitational wave detection, extraterrestrial life exploration and high-precision measurement of earth's gravity field have great scientific significance and wide application value. Inter satellite long baseline high-precision laser interferometry ranging technology can obtain high-precision inter satellite displacement variation, which is the key technology of the above space-based scientific engineering. The laser interference system transforms the inter satellite displacement into corresponding interference signals. The above-mentioned scientific plan has put forward extremely high precision, stability and wide bandwidth requirements for laser interference phase measurement. It can be seen that the high-precision laser phase measurement technology has become the bottleneck to further improve the ranging accuracy and stability. This paper researches the progress of high-precision laser phase measurement technology for space-based precision ranging at home and abroad, analyzes the demand of this technology in space-related fields and proposes the key technologies and preliminary schemes to be solved in the research.

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