A digital open-loop Doppler processing prototype for deep-space navigation | |
Jian NianChuan1![]() | |
刊名 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
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2009-12-01 | |
卷号 | 52期号:12页码:1849-1857 |
关键词 | open-loop Doppler differential Doppler deep space navigation Chang'E-1 |
英文摘要 | A prototype based on digital radio technology with associated open-loop Doppler signal processing techniques has been developed to measure a spacecraft's line-of-sight velocity. The prototype was tested in China's Chang'E-1 lunar mission relying on S-band telemetry signals transmitted by the satellite, with results showing that the residuals had a RMS value of similar to 3 mm/s (1 sigma) using 1-sec integration, which is consistent with the Chinese conventional USB (Unified S-Band) tracking system. Such precision is mainly limited by the short-term stability of the atomic (e.g. rubidium) clock at the uplink ground station. It can also be improved with proper calibration to remove some effects of the transmission media (such as solar plasma, troposphere and ionosphere), and a longer integration time (e.g. down to 0.56 mm/s at 34 seconds) allowed by the spacecraft dynamics. The tracking accuracy can also be increased with differential methods that may effectively remove most of the long-term drifts and some of the short-term uncertainties of the uplink atomic clock, thereby further reducing the residuals to the 1 mmls level. Our experimental tracking data have been used in orbit determination for Chang'E-1, while other applications (such as the upcoming YH-1 Mars orbiter) based on open-loop Doppler tracking will be initiated in the future. Successful application of the prototype to the Chang'E-1 mission in 2008 is believed to have great significance for China's future deep space exploration. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Physics, Multidisciplinary |
研究领域[WOS] | Physics |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000272622300006 |
公开日期 | 2010-07-30 |
内容类型 | 期刊论文 |
源URL | [http://119.78.226.72//handle/331011/10062] ![]() |
专题 | 上海天文台_天文地球动力学研究中心 |
作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Beijing Aerosp Command & Control Ctr, Beijing 100094, Peoples R China 4.CAS, Urumqi Astron Stn, Natl Astron Observ, Urumqi 830011, Peoples R China 5.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430070, Peoples R China |
推荐引用方式 GB/T 7714 | Jian NianChuan,Shang Kun,Zhang SuJun,et al. A digital open-loop Doppler processing prototype for deep-space navigation[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(12):1849-1857. |
APA | Jian NianChuan.,Shang Kun.,Zhang SuJun.,Wang MingYuan.,Shi Xian.,...&Gou Wei.(2009).A digital open-loop Doppler processing prototype for deep-space navigation.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(12),1849-1857. |
MLA | Jian NianChuan,et al."A digital open-loop Doppler processing prototype for deep-space navigation".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.12(2009):1849-1857. |
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