Results 21 to 30 of about 913 (245)

Connection Planning Method Between LEO Communication Constellation and Earth Station

open access: yes天地一体化信息网络, 2022
A connection planning method between LEO communication constellation and earth station was proposed.Considering the large number of LEO communication constellation satellites, it is diffi cult to directly establish the connection planning method between ...
Shuge ZHAO   +4 more
doaj   +2 more sources

Traffic simulation of broadband LEO constellation satellite communication system

open access: yesDianzi 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

LEO-Based Satellite Constellation for Moving Target Detection [PDF]

open access: yesRemote Sensing, 2022
With the rapid development of cooperative detection technology, target fusion detection with regard of LEO satellites can be realized by means of their diverse observation configurations. However, the existing constant false alarm ratio (CFAR) detection research rarely involves the space-based target fusion detection theory.
Duan, Chongdi   +3 more
openaire   +2 more sources

Cost-Efficient LEO Navigation Augmentation Constellation Design under a Constrained Deployment Approach

open access: yesInternational Journal of Aerospace Engineering, 2021
The advantages of the Low Earth Orbit (LEO) satellite include low-latency communications, shorter positioning time, higher positioning accuracy, and lower launching, building, and maintenance costs.
Jing Ren   +4 more
doaj   +1 more source

Network Pruning for Extending Satellite Service Life in LEO Satellite Constellations [PDF]

open access: yes2015 IEEE International Conference on Data Science and Data Intensive Systems, 2015
We address the problem of network pruning for extending the service life of satellites in LEO constellations. Satellites in LEO constellations can spend over 30 % of their time under the earth's umbra, time during which they are powered by batteries.
Mohammed Hussein   +2 more
openaire   +3 more sources

Extended Geometry and Probability Model for GNSS+ Constellation Performance Evaluation

open access: yesRemote Sensing, 2020
We proposed an extended geometry and probability model (EGAPM) to analyze the performance of various kinds of (Global Navigation Satellite System) GNSS+ constellation design scenarios in terms of satellite visibility and dilution of precision (DOP) et al.
Lingdong Meng   +4 more
doaj   +1 more source

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

open access: yesRemote 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   +8 more
doaj   +1 more source

Impacts of Orbital and Constellation Parameters on the Number and Spatiotemporal Coverage of LEO-LEO Occultation Events

open access: yesRemote Sensing, 2021
The development of small-satellite technologies allows the low Earth orbit intersatellite link (LEO-LEO) occultation method to observe the Earth’s atmosphere with global coverage and acceptable costs using electromagnetic signals, in which the L/X/K/M ...
Congliang Liu   +10 more
doaj   +1 more source

Analysis on Low-Earth-Orbit Constellation Networking and Adaptability of Ground IP Routing Technology

open access: yes天地一体化信息网络, 2020
With the development of the national major project of space-integrated-ground information network including space-based access network and LEO constellation system,it is urgently to be solved how to deal with the routing problem of LEO constellation with
Ci HE   +3 more
doaj   +2 more sources

On-Board Decentralized Observation Planning for LEO Satellite Constellations

open access: yesAlgorithms, 2023
The multi-satellite on-board observation planning (MSOOP) is a variant of the multi-agent task allocation problem (MATAP). MSOOP is used to complete the observation task allocation in a fully cooperative mode to maximize the profits of the whole system.
Song, Bingyu   +5 more
openaire   +2 more sources

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