Results 11 to 20 of about 5,413 (290)

Modeling and Simulation of Inter-Satellite Laser Communication for Space-Based Gravitational Wave Detection [PDF]

Sensors
Space-based gravitational wave detection uses an equilateral triangular satellite constellation with inter-satellite laser heterodyne interferometry to measure displacement variations caused by gravitational waves.
Haoqian Liang, Zhaoxiang Yi, Hongling Ling, Kai Luo   +3 more
doaj   +5 more sources

Shipborne Acquisition, Tracking, and Pointing Experimental Verifications towards Satellite-to-Sea Laser Communication

Applied Sciences, 2019
Acquisition, tracking, and pointing (ATP) is a key technology in free space laser communication that has a characteristically high precision. In this paper, we report the acquisition and tracking of low-Earth-orbit satellites using shipborne ATP and ...
Dong He, Qiang Wang, Xiang Liu, Zhijun Song, Jianwei Zhou, Zhongke Wang, Chunyang Gao, Tong Zhang, Xiaoping Qi, Yi Tan, Ge Ren, Bo Qi, Jigang Ren, Yuan Cao, Yongmei Huang   +14 more
doaj   +4 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   +3 more sources

Performance of HQAM/XQAM Laser Communication System in Anisotropic Non-Kolmogorov Ground–HAP–Satellite Uplink

Photonics, 2023
Satellite laser communication can achieve high-speed, high-precision, and high-security broadband communication without being constrained by the electromagnetic spectrum, which has attracted attention.
Xuewen Jiang, Yi Wang, Wangyue Lu
doaj   +2 more sources

Dynamic Network Formation for FSO Satellite Communication

Applied Sciences, 2022
Satellite network optimization is essential, particularly since the cost of manufacturing, launching and maintaining each satellite is significant. Moreover, classical communication optimization methods, such as Minimal Spanning Tree, cannot be applied ...
Revital Marbel, Roi Yozevitch, Tal Grinshpoun, Boaz Ben-Moshe   +3 more
doaj   +2 more sources

Interference and Protection in Satellite Laser Communication

天地一体化信息网络, 2023
In order to explore the safety protection technologies for various external interferences in satellite laser communication, four interference sources in the satellite laser communication link and their principles were introduced, included atmospheric ...
Chenzhe LAO, Jianfeng SUN
doaj   +3 more sources

High-Precision Calibration Technology and Experimental Verification for Dual-Axis Laser Communication Systems [PDF]

Sensors
With the continuous improvement of remote sensing satellite resolution, laser communication technology has gained significant traction. The pointing accuracy of ground-based laser communication terminals is critical for the stability of satellite–ground ...
Wenyan Li, Xiaolei Zhang, Lei Zhang, Xiang Wei, Guoxi Luo, Peng Zhang, Zhipeng Xue   +6 more
doaj   +2 more sources

Pico-Sat to Ground Control: Optimizing Download Link via Laser Communication

Remote Sensing, 2022
Consider a constellation of over a hundred low Earth orbit satellites that aim to capture every point on Earth at least once a day. Clearly, there is a need to download from each satellite a large set of high-quality images on a daily basis.
Revital Marbel, Boaz Ben-Moshe, Tal Grinshpoun   +2 more
doaj   +2 more sources

Research on Application Technology of Satellite Laser Network

Guangtongxin yanjiu, 2023
With the rapid development of satellite internet, the shortage of bandwidth and spectrum resources has become increasingly prominent.Satellite laser communication has the characteristics of large bandwidth and no spectrum constraints, which makes it an ...
ZHANG De-peng, YU Yan, WANG Yue
doaj   +2 more sources

Simulation Method for the Impact of Atmospheric Wind Speed on Optical Signals in Satellite–Ground Laser Communication Links

Photonics
To analyze the intensity of atmospheric turbulence in a satellite–ground laser communication link, it is important to consider the effect of increased atmospheric turbulence caused by wind speed.
Wujisiguleng Zhao, Chunyi Chen
doaj   +2 more sources