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Application of spatial technologies in the field of resources and disasters

Li Jing,Jiang Weiguo,Wang Yuanyuan,Chang Yan

Strategic Study of CAE 2008, Volume 10, Issue 6, Pages 33-40

Abstract: large scale, dynamic, all-weather, real time monitoring of disaster and environment, China will lunch a moonletconstellation composed of 4 optical satellites and 4 SAR satellites before 2010.

Keywords： spatial technologies disaster reduction environment monitoring moonlet constellation

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Engineering Innovation and the Development of the BDS-3 Navigation Constellation

Jun Xie, Chengbin Kang

Engineering 2021, Volume 7, Issue 5, Pages 558-563 doi: 10.1016/j.eng.2021.04.002

Keywords： EngineeringAchievements

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Development Strategy of Space Internet Constellation System in China

Li Feng, Yu Hang, Ding Rui, Wang Ningyuan, Wang Yuqi, Zhou Zhicheng

Strategic Study of CAE 2021, Volume 23, Issue 4, Pages 137-144 doi: 10.15302/J-SSCAE-2021.04.016

Abstract:

The space Internet constellation system is an important component ofHowever, China is still in the preparatory stage of the space Internet constellation system constructionapplication fields, and uncontrollability of network security; therefore, China’s space Internet constellationFacing the opportunities and challenges, we overview the space Internet constellation system developmentand abroad and propose the development ideas, key tasks, and technical routes of the space Internet constellation

Keywords： space Internet constellation frequency and orbit resource satellite Internet standards network security

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General modeling and optimization technique for real-world earth observation satellite scheduling

Frontiers of Engineering Management Pages 695-709 doi: 10.1007/s42524-023-0263-3

Abstract: addition, a complicatedly constrained real-world benchmark exampled by a four-EOS Chinese commercial constellation

Keywords： earth observation satellite scheduling general technique optimization algorithm commercial constellation

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Understand and construct Beidou

Xu Qifeng

Strategic Study of CAE 2014, Volume 16, Issue 8, Pages 26-32

Abstract: adverse conditions of constructing satellite navigation system in our country are analyzed and satellite constellation

Keywords： system regional augmentationsatellite navigation system satellite constellation design regional navigation

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Consideration on Developing Mobile Satellite Communication

Zhang Naitong,Zhang Zhongzhao,Chu Haibin,Liu Huijie

Strategic Study of CAE 2002, Volume 4, Issue 10, Pages 11-16

Abstract:

Three kinds of international constellation communication system are introduced in this paper, and

Keywords： mobile satellite communication constellation communication system broad band service

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Studies on Autonomous Navigation Techniques for Navigation Constellations

Shuai Ping,Qu Guangji,Chen Zhonggui

Strategic Study of CAE 2006, Volume 8, Issue 3, Pages 22-30

Abstract:

If the autonomous navigation techniques are applied to a navigation constellation, the number of theFirstly, the information processing flow of the autonomous navigation constellation is described systematicallySecondly, the key techniques to realize the autonomous navigation for the navigation constellation, includingautonomous time synchronization, autonomous ephemeris updating, robust filtering, establishment of the constellationfeasibility of the information processing flow and key technical algorithms for the autonomous navigation constellation

Keywords： navigation constellation autonomous navigation information processing flow system simulation

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Low Earth Orbiter (LEO) Navigation Augmentation: Opportunities and Challenges

Wang Lei, Li Deren, Chen Ruizhi, Fu Wenju, Shen Xin, Jiang Hao

Strategic Study of CAE 2020, Volume 22, Issue 2, Pages 144-152 doi: 10.15302/J-SSCAE-2020.02.018

Abstract:

As China’s Beidou satellite navigation system (Beidou system) achieves a primary global coverage, the low earth orbiter navigation augmentation (LEO-NA) technique becomes a hot research topic, since it can easily cooperate with the Beidou system to improve the precision for global autonomous navigation and to extend the application market of the global navigation satellite systems (GNSS). This paper analyzed the demand for and status of the LEO-NA technique, and focused on the in-orbit validation of key techniques for the “Luojia-1A” satellite. It also studied the challenges faced by the LEO-NA system, including interoperability of signal frequencies after navigation augmentation, integrated design of the communication and navigation signals, control and management of the LEO constellations, acquisition and tracking of the high-dynamic augmented signals, and integration with existing GNSS systems. Considering the pressing demand for the LEO-NA techniques, the following suggestions are proposed, including enhancing the top-level design of the LEO-NA system while focusing on the synergy of the LEO-NA and Beidou systems; promoting the integration of the communications, navigation, and remote sensing functions, and building the space-based real-time service system in a stepwise and stratified manner; and planning and constructing the satellite project and the ground infrastructure in an integrated manner.

Keywords： satellite navigation augmentation low earth orbiter constellation Beidou system collaborative development