Results 1 to 10 of about 211,018 (292)

Distributed Orbit Determination for Global Navigation Satellite System with Inter-Satellite Link [PDF]

Sensors, 2019
To keep the global navigation satellite system functional during extreme conditions, it is a trend to employ autonomous navigation technology with inter-satellite link.
Yuanlan Wen, Jun Zhu, Youxing Gong, Qian Wang, Xiufeng He   +4 more
doaj   +2 more sources

Assignment of hybrid laser and microwave inter-satellite links for navigation satellite systems [PDF]

Scientific Reports
A hybrid network comprising both laser and microwave inter-satellite links (ISLs) has been established within navigation satellite constellations. Leveraging the flexible construction of microwave links and the high ranging accuracy and communication ...
Nan Wang, Leyuan Sun, Yuankun Fang, Zhengkai Lu, Qiancheng Ding, Chengzhuo Wang, Wende Huang   +6 more
doaj   +2 more sources

A New Measurement Method for BDS Inter-Satellite Link Based on Co-Frequency Co-Time Full Duplex System [PDF]

Sensors
To meet the urgent need for high-precision ranging and large-capacity transmission in the current BeiDou-3 inter-satellite link system, this paper proposes a novel two-way measurement method based on Co-frequency Co-time Full Duplex (CCFD) system.
Hao Feng, Zhuo Yang, Hong Ma, Yiwen Jiao, Tao Wu, Hongbin Ma, Qimin Chen   +6 more
doaj   +2 more sources

Unidirectional Orbit Determination for Extended Users Based on Navigation Ka-Band Inter-Satellite Links [PDF]

Sensors
Traditional spacecraft orbit determination primarily employs two methodologies: ground station/survey ship-based orbit determination and global navigation satellite system (GNSS)-based orbit determination.
Yong Shangguan, Hua Zhang, Yong Yu, Wenjin Wang, Bin Liu, Haihan Li, Rong Ma   +6 more
doaj   +2 more sources

Rapid convergent ant colony algorithm for satellite network topology generation [PDF]

Jisuanji gongcheng, 2019
Aiming at the disadvantages that the ant colony algorithm can slow down the satellite network topology generation and easily fall into the local optimal solution,a new algorithm named SNTG-ACA is proposed,based on the characteristics of satellite network
YANG Li,LIU Yun,WEI Debin,CAI Ruiyan
doaj   +1 more source

Acquisition Time in Laser Inter-Satellite Link Under Satellite Vibrations

IEEE Photonics Journal, 2023
Pointing, acquisition, and tracking (PAT) is a major technical challenge of laser inter-satellite links (ISLs). For the fast establishment of laser link and the maximization of communication time, it is of importance to minimize the acquisition time ...
Kwanyong Lee, Vuong Mai, Hoon Kim
doaj   +1 more source

High-speed inter-satellite link construction technology for navigation constellation oriented to engineering practice

Open Astronomy, 2022
This article presents a study on the design of high-speed inter-satellite links for the global navigation satellite system, which consists of 24 middle earth orbit, 3 inclined geosynchronous orbit, 3 geostationary orbit satellites, and 4 typical ground ...
Liu Canyou, Zhang Feng, Ma Hao, Chen Shuang, Wang Xin, Ye Xiusong   +5 more
doaj   +1 more source

Research on Semi-Physical Simulation Testing of Inter-Satellite Laser Interference in the China Taiji Space Gravitational Wave Detection Program

Applied Sciences, 2021
To guarantee a smooth in-orbit space gravitational wave detection for the Taiji mission, a semi-physical simulation test of inter-satellite laser interference is carried out.
Yikun Wang, Lingqiang Meng, Xuesen Xu, Yu Niu, Keqi Qi, Wei Bian, Qiujie Yang, Heshan Liu, Jianjun Jia, Jianyu Wang   +9 more
doaj   +1 more source

Relativistic Time Transfer for Inter-satellite Links [PDF]

Frontiers in Astronomy and Space Sciences, 2016
Inter-Satellite links (ISLs) will be an important technique for a global navigation satellite system (GNSS) in the future. Based on the principles of general relativity, the time transfer in an ISL is modeled and the algorithm for onboard computation is described.
Yi eXie, Yi eXie, Yi eXie
openaire   +2 more sources

Link-State Aware Hybrid Routing in the Terrestrial–Satellite Integrated Network

Sensors, 2022
In this paper, we study data transmission in the Terrestrial–Satellite Integrated Network (TSIN), where terrestrial networks and satellites are combined together to provide seamless global network services for ground users.
Huihui Xu, Zhangsong Shi, Mingliu Liu, Ning Zhang, Yanjun Yan, Guangjie Han   +5 more
doaj   +1 more source