Results 11 to 20 of about 2,316,300 (349)

Survey of Inter-Satellite Communication for Small Satellite Systems: Physical Layer to Network Layer View [PDF]

open access: yesIEEE Communications Surveys and Tutorials, 2016
Small satellite systems enable whole new class of missions for navigation, communications, remote sensing and scientific research for both civilian and military purposes.
Radhika Radhakrishnan   +2 more
exaly   +5 more sources

Experimental Attitude Estimation Using Real-time Magnetometer Calibrated Data [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2022
Magnetometer is one of the main sensors in Attitude Determination and Control Subsystem (ADCS) of Low Earth Orbit (LEO) satellites and since it is operable in all times during an orbital period, it can be utilized in almost all functional modes like ...
Zeinab Talebi   +2 more
doaj   +1 more source

Signal estimation in cognitive satellite networks for satellite-based industrial internet of things [PDF]

open access: yes, 2021
Satellite industrial Internet of Things (IIoT) plays an important role in industrial manufactures without requiring the support of terrestrial infrastructures.
Chen, Yunfei   +5 more
core   +1 more source

Science Objectives and Design of Ionospheric Monitoring Instrument Ionospheric Anomaly Monitoring by Magnetometer And Plasmaprobe (IAMMAP) for the CAS500-3 Satellite

open access: yesJournal of Astronomy and Space Sciences, 2022
The Ionospheric Anomaly Monitoring by Magnetometer And Plasma-probe (IAMMAP) is one of the scientific instruments for the Compact Advanced Satellite 500-3 (CAS 500-3) which is planned to be launched by Korean Space Launch Vehicle in 2024.
Kwangsun Ryu   +12 more
doaj   +1 more source

Research on attitude control strategy of single engine failure in the first-stage flight phase of new generation launch vehicle [PDF]

open access: yesMATEC Web of Conferences, 2021
The successful launching of the new generation of launch vehicle is of great practical significance to the development of China Space, and the cryogenic liquid engine commonly used in the launch vehicle has a certain probability of failures, which may ...
Liao Guorui, Liu Jinjie, Dou Tianheng
doaj   +1 more source

Satellite Communications in the New Space Era: A Survey and Future Challenges [PDF]

open access: yesIEEE Communications Surveys and Tutorials, 2020
Satellite communications (SatComs) have recently entered a period of renewed interest motivated by technological advances and nurtured through private investment and ventures.
O. Kodheli   +13 more
semanticscholar   +1 more source

Satellite imaging reveals increased proportion of population exposed to floods

open access: yesNature, 2021
Flooding affects more people than any other environmental hazard and hinders sustainable development1,2. Investing in flood adaptation strategies may reduce the loss of life and livelihood caused by floods3.
B. Tellman   +7 more
semanticscholar   +1 more source

Long-term Performance Evaluation for Ionospheric Delay Correction of BeiDou Navigation Satellite System [PDF]

open access: yesE3S Web of Conferences, 2019
Ionospheric delay is one of the main errors in the satellite navigation and positioning system. At present, ionospheric delay correction model and grid ionospheric information are provided to correct the error in BeiDou Navigation Satellite System (BDS).
Liu Chen   +5 more
doaj   +1 more source

Refracting RIS-Aided Hybrid Satellite-Terrestrial Relay Networks: Joint Beamforming Design and Optimization

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2022
Reconfigurable intelligent surface (RIS) has been viewed as a promising solution in constructing reconfigurable radio environment of the propagation channel and boosting the received signal power by smartly coordinating the passive elements’ phase shifts
Zhi Lin   +6 more
semanticscholar   +1 more source

Application of the Improved Grey Wolf Algorithm in Spacecraft Maneuvering Path Planning

open access: yesInternational Journal of Aerospace Engineering, 2022
In many space missions, spacecraft are required to have the ability to avoid various obstacles and finally reach the target point. In this paper, the path planning of spacecraft attitude maneuver under boundary constraints and pointing constraints is ...
Changqing Wu   +4 more
doaj   +1 more source

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