LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges
Geo-spatial Information Science, 2021 With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge +8 more
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Remote Sensing, 2023 With the continuous construction of large-scale Low Earth Orbit (LEO) constellations, their potential for Global Navigation Satellite System (GNSS) applications has been emphasized.
Junqi Guo, Yang Wang, Chenyang Sun
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Forward modeling of spaceborne radar observations [PDF]
Atmospheric Measurement TechniquesAccurate forward models, particularly radiative transfer models, are essential for the assimilation of both passive and active satellite observations in modern data assimilation frameworks.
I. Moradi, I. Moradi, S. Kalluri, Y. Zhu
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Analytic Model for Low Earth Orbit Satellite Solar Power
IEEE Transactions on Aerospace and Electronic Systems, 2020 An analytic model for calculating the instantaneous and average orbital power available to a satellite in a circular low Earth orbit is presented. By accounting for the effects of angle of solar incidence and eclipsing, for both stabilized and tumbling satellites, this model allows for fast, simple, accurate calculations of available power without the ...
Grey, John Petrus +3 more
openaire +1 more source
Review of the Development of Low Earth Orbit Satellite Communication for Smart High-Speed Railway
天地一体化信息网络, 2023 Low-earth orbit satellites have the advantages of wide bandwidth, low latency, and large coverage, making them very suitable as a supplement to ground cellular networks.Low-earth orbit satellites can meet the requirements of smart high-speed railway full
Zhaoyang SU +5 more
doaj +2 more sources
Joint optimization based satellite handover strategy for low earth orbit satellite networks
IET Communications, 2021 Low earth orbit constellation satellite communication has the characteristics of low propagation delay, low path loss, low launch cost and wide range of applications.
Yifei Liu +6 more
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Routing optimization based on topology control in satellite network
Tongxin xuebao, 2018 A new double-layer satellite network model for space networking was established and a routing algorithm based on topology control (TCRA) was proposed considering the advantages of low earth orbit and stationary earth orbit satellite networks.This model ...
Xiaogang QI, Jiulong MA, Lifang LIU
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A passive satellite deorbiting strategy for medium Earth orbit using solar radiation pressure and the J(2) effect [PDF]
, 2012 The growing population of space debris poses a serious risk to the future of space flight. To effectively manage the increase of debris in orbit, end-of life disposal has become a key requirement for future missions.
Colombo, Camilla +2 more
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Relative Navigation to Non-Cooperative Targets in LEO: Achievable Accuracy from Radar Tracking Measurements [PDF]
, 2013 Any future space debris removal or on-orbit servicing mission faces the problem of the initial relative orbit determination of the servicing satellite to the non-cooperative target.
Letsch, Klemens +5 more
core +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source