Autonomous navigation method and technology implementation of high-precision solar spectral velocity measurement

Yang, Ye; You, Wei; Jinzhou, Zheng; Ye, Hui; Ji, Kaijun; Chen, Xiao; Lin, Xin; Huang, Qinglong; Cheng, Xiao; Zhang, Wei; Li, Faquan

doi:10.1007/s11433-022-1922-3

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…As (12) shows, compared to traditional SRS, ( 11), ( 7), and ( 9) are also involved in direction vector assisted SRS to establish the solution equations, which can help solve the position of spacecrat directly.…”

Section: Solution Equation Of Direction Vector Assisted Spectral Reds...mentioning

confidence: 99%

“…The simulation period is 8 h from 10 May 2018, at 14:00:00.000 UTCG, to 10 May 2018, at 22:00:00.000 UTCG and the time step is 0.01 s. The generated trajectory of the spacecraft is shown as figure 4. The raw spectra from the Gaia database are used to simulate the observed spectra from celestial body, which is shown as figure 5 [12]. The cubic function interpolation fitting method was adopted to increase the spectral resolution needed and the cross correlation method is chosen to estimate the spectral redshift measurement [19].…”

Section: Simulation and Analysismentioning

confidence: 99%

“…Compared to GNSS, the Celestial Navigation System offers robust resistance to electromagnetic interference and operates independently of such geopolitical constraints [10][11][12][13]. Additionally, at operational altitudes of spacecraft, celestial navigation provides reliable all-weather navigation information, unaffected by climatic environmental interferences.…”

Section: Introductionmentioning

confidence: 99%

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The direction vector assisted INS/spectral redshift integrated navigation system for spacecraft

Peng,

Li,

et al. 2024

Meas. Sci. Technol.

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A reliable and autonomous navigation system is crucial for the achievement of high survivability of spacecraft. As a novel autonomous navigation system, inertial/spectral redshift(INS/SRS) integrated navigation system can correct the navigation error of INS through redshift and direction vector information from celestial body. However, Since SRS need to obtain the position measurement by integrating the velocity information of the spacecraft, the position error from INS/SRS is diverged. Thus, this paper investigates a direction vector assisted INS/SRS integrated navigation system for the spacecraft. In this paper, the relationship among the position of spacecraft, redshift and direction vector from celestial body are investigated. And then a direction vector assisted SRS is proposed which can solve the position information of spacecraft directly by redshift and direction vector information. Finally, the direction vector assisted SRS has been combined with INS as the direction vector assisted INS/SRS integrated navigation system. Simulations and comprehensive analysis have demonstrated the proposed integrated navigation system has better navigation performance than INS/SRS integrated navigation system.

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Section: Solution Equation Of Direction Vector Assisted Spectral Reds...mentioning

confidence: 99%

Section: Simulation and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The direction vector assisted INS/spectral redshift integrated navigation system for spacecraft

Peng,

Li,

et al. 2024

Meas. Sci. Technol.

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The Chinese Hα Solar Explorer (CHASE) mission: An overview

Fang

et al. 2022

Sci. China Phys. Mech. Astron.

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Editorial

Fang

Ding

et al. 2022

Sci. China Phys. Mech. Astron.

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The Chinese Hα Solar Explorer (CHASE) was successfully launched on October 14, 2021 as the first solar space mission of China National Space Administration (CNSA). The CHASE mission, dubbed "Xihe" in Chinese (Goddess of the Sun), is designed to test a newly developed satellite platform and to spectroscopically observe the Sun at the Hα line, which is one of the most important optical lines reflecting the dynamics of solar activities in the lower atmosphere, namely the photosphere and chromosphere. Since the first application of spectrographs and filters in the earlier 20th century, the solar Hα images have usually been obtained with ground-based telescopes, thus suffering from seeing and weather effects of the Earth's atmosphere. The CHASE mission provides, for the first time, the seeing-free Hα spectroscopic observations of the full solar disk or region of interest with high spectral and temporal resolutions. The unique characteristics of the CHASE data are critical for the research of solar and stellar physics. Since its launch, the on-orbit performance of the CHASE satellite has been excellent. This special topic aims to help users of CHASE data better understand its instrumentation, technical parameters, observational modes, and data processing.This special topic on CHASE mission is composed of five articles. In the first article, Li et al. [1] give a general introduction of the scientific objectives of the CHASE mission, an overview of the scientific payload-Hα Imaging Spectrograph (HIS), a brief description of the data processing, and the first results of on-orbit observations. The second article [2] provides detailed calibration procedures of the CHASE/HIS science data, including the correction of the slit image curvature, dark-and flat-field corrections, intensity calibration, and the generation of higher-level products. In the third article, Zhang et al. [3] describe the design of the ultra-high precision and stability platform of the CHASE satellite, and its on-orbit performance. The fourth article [4] gives a detailed description of the HIS instrument, including its optical systems, mechanics, and electronics. The last article [5] introduces another payload onboard the CHASE satellite-the solar atomic frequency discriminator for autonomous navigation.

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Autonomous navigation method and technology implementation of high-precision solar spectral velocity measurement

Cited by 9 publications

References 14 publications

The direction vector assisted INS/spectral redshift integrated navigation system for spacecraft

The direction vector assisted INS/spectral redshift integrated navigation system for spacecraft

The Chinese Hα Solar Explorer (CHASE) mission: An overview

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