Results 21 to 30 of about 11,866 (295)

Traffic simulation of broadband LEO constellation satellite communication system

Dianzi Jishu Yingyong, 2019
Due to the rapid development of small satellite technology，and the advantages of low earth orbit satellite(LEO) with low delay and low propagation loss as compared with the traditional geosynchronous orbit satellite(GEO), the broadband LEO constellation ...
Xu Jun, Lu Wei, Zhang Gengxin
doaj   +1 more source

Efficient Content Caching for Delivery Time Minimization in the LEO Satellite Networks [PDF]

, 2023
peer reviewedNext-generation multi-spot beam satellite systems open a new way to design low earth orbit (LEO) satellite communication systems with full flexibility in managing bandwidth, transmit power, and spot beam coverage, enabling the adoption of ...
VU, Thang Xuan, OTTERSTEN, Björn, CHATZINOTAS, Symeon, BHANDARI, Sovit   +3 more
core   +1 more source

A Collaborative Inference Algorithm in Low-Earth-Orbit Satellite Network for Unmanned Aerial Vehicle

Drones, 2023
In recent years, the low-Earth-orbit (LEO) satellite network has achieved considerable development. Moreover, it is necessary to introduce edge computing into LEO networks, which can provide high-quality services, such as worldwide seamless low-delay ...
Zhengqian Xu, Peiying Zhang, Chengcheng Li, Hailong Zhu, Guanjun Xu, Chenhua Sun   +5 more
doaj   +1 more source

LEO Satellite Clock Modeling and Its Benefits for LEO Kinematic POD [PDF]

, 2023
High-accuracy Low Earth Orbit (LEO) satellite clock and orbital products are preconditions to realize LEO augmentation for high-accuracy GNSS-based positioning on the ground.
Yang, X., Xuhai Yang, El-Mowafy, Ahmed, Ahmed El-Mowafy, Wang, K., Kan Wang   +5 more
core   +1 more source

Drag-free and attitude control for the GOCE satellite [PDF]

, 2008
The paper concerns Drag-Free and Attitude Control of the European satellite Gravity field and steady-state Ocean Circulation Explorer (GOCE) during the science phase.
Canuto, Enrico
core   +1 more source

Altimeter + INS/Giant LEO Constellation Dual-Satellite Integrated Navigation and Positioning Algorithm Based on Similar Ellipsoid Model and UKF

, 2021
To solve the problem of location service interruption that is easily caused by incomplete visual satellite environments such as occlusion, urban blocks and mountains, we propose an altimeter + inertial navigation system (INS) + giant low earth orbit (LEO)
Lvyang Ye, Yunxia Xia, Xiaolun Jing, Yikang Yang, Hengnian Li, Haifeng Yang   +5 more
core   +1 more source

Single-Satellite Integrated Navigation Algorithm Based on Broadband LEO Constellation Communication Links

, 2021
With the rapid development of satellite technology and the need to satisfy the increasing demand for location-based services, in challenging environments such as indoors, forests, and canyons, there is an urgent need to improve the position accuracy in ...
Lvyang Ye, Xiaolun Jing, Yikang Yang, Lingyu Deng, Jiangang Ma, Hengnian Li   +5 more
core   +1 more source

Self-organising satellite constellation in geostationary Earth orbit [PDF]

, 2015
This paper presents a novel solution to the problem of autonomous task allocation for a self-organizing satellite constellation in Earth orbit. The method allows satellites to cluster themselves above targets on the Earth’s surface.
Colombo, Camilla, Mingotti, Giorgio, McInnes, Colin, Mushet, Garrie   +3 more
core   +1 more source

A new method to estimate GPS satellite and receiver differential code biases using a network of LEO satellites

, 2021
The differential code biases (DCBs) of the global positioning system (GPS) receiver onboard low-Earth orbit (LEO) satellites are commonly estimated by a local spherical symmetry assumption together with the known GPS satellite DCBs from ground-based ...
Jin, Shuanggen, Hoque, Mainul, Yuan, Liangliang; Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China, Jin, Shuanggen; School of Remote Sensing and Geomatics Engineering, Nanjing University of Information Science and Technology, Nanjing, China, Yuan, Liangliang, Hoque, Mainul; Institute of Solar-Terrestrial Physics, German Aerospace Center, Neustrelitz, Germany   +5 more
core   +1 more source

Analysis on BDS-3 Autonomous Navigation Performance Based on the LEO Constellation and Regional Stations

Remote Sensing, 2023
The global navigation satellite system (GNSS) is developing rapidly, and the related market applications and scientific research are increasing. Studies based on large low Earth orbit (LEO) satellite constellations have become research hotspots.
Baopeng Xu, Xing Su, Zhimin Liu, Mudan Su, Jianhui Cui, Qiang Li, Yan Xu, Zeyu Ma, Tao Geng   +8 more
doaj   +1 more source