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521
A Cooperative Routing Scheme Using Inter-Satellite Links to Assist Data Downloading for LEO Satellite Networks
Published 2022-10-01“…Low earth orbit (LEO) satellite networks can provide Internet service to users in areas where cellular networks are difficult to deploy. …”
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522
Evaluation of delay tolerant network routing protocols for data streaming through LEO constellation
Published 2023-12-01“…In the Era of Mega Low Earth Orbit (LEO) satellite constellation, the efficient networking through Inter-Satellite Links (ISLs) plays a vital role in its mission success. …”
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523
A Miniature Resonant and Torsional Magnetometer Based on Lorentz Force
Published 2018-12-01“…The test results demonstrated that this sensor could meet the requirements for attitude determination systems in low earth orbit satellites.…”
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524
Application of IoT network for marine wildlife surveillance
Published 2023-12-01“…These electronic gadgets constantly provide data signals to the gateways, which satellites such as those in Low Earth Orbit may transmit. Because of these networks’ limited resources and the IoT, these transactions must be completed with the least amount of latency and data loss possible. …”
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525
High-Precision Magnetic Testbed Design and Simulation for LEO Small-Satellite Control Test
Published 2023-07-01“…Small satellites with academic missions in low Earth orbit (LEO) employ magnetic attitude control systems primarily due to their ease of development and low cost. …”
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526
LEO Satellite Downlink Distributed Jamming Optimization Method Using a Non-Dominated Sorting Genetic Algorithm
Published 2024-03-01“…Due to their low orbit, low-Earth-orbit (LEO) satellites possess advantages such as minimal transmission delay, low link loss, flexible deployment, diverse application scenarios, and low manufacturing costs. …”
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527
Fairness-Aware Inter-Slice Scheduler for IoT Services Over Satellite
Published 2023-01-01“…This paper addresses the problem of scheduling the uplink bandwidth of Low Earth Orbit (LEO) satellites among multiple Internet of Things (IoT) slices with diverse Quality of Service (QoS) requirements. …”
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528
Design of Mega-Constellations for Global Uniform Coverage with Inter-Satellite Links
Published 2022-04-01“…Constellation configuration design is a prerequisite and critical step in the construction of a mega-constellation system in low Earth orbit. However, the huge number of satellites and the intricate changes in relative positions among them make the configuration design the most challenging part. …”
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529
Preliminary Results of Tissue-Equivalent Proportional Counter (TEPC) Dosimeter for Measuring In-Situ Aviation Radiation
Published 2020-12-01“…That was originally developed as a payload of small satellite in the low-earth orbit. This dosimeter is based on a TEPC. It is made of an A-150 tissue-equivalent plastic shell of an internal diameter of 6 cm and a thickness of 0.3 cm. …”
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530
Clock Ensemble Algorithm Test in the Establishment of Space-Based Time Reference
Published 2023-02-01“…With the deployment of next-generation Low Earth Orbit (LEO) satellites equipped with higher-precision clocks, the space-based time reference system will achieve improved accuracy and greater potential for practical applications.…”
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531
Satellite- and Cache-Assisted UAV: A Joint Cache Placement, Resource Allocation, and Trajectory Optimization for 6G Aerial Networks
Published 2022-01-01“…This paper considers Low Earth Orbit (LEO) satellite- and cache-assisted unmanned aerial vehicle (UAV) communications for content delivery in terrestrial networks, which shows great potential for next-generation systems to provide ubiquitous connectivity and high capacity. …”
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532
Spectral structure of Pc3–4 pulsations: possible signatures of cavity modes
Published 2013-04-01“…In addition, fluxgate magnetometer data from the CHAMP (CHAllenging Minisatellite Payload) low Earth orbit satellite were used. The results of our analysis suggest that at least three mechanisms contribute to the spectral content of Pc3–4 pulsations typically observed at these latitudes. …”
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533
A cubesat centrifuge for long duration milligravity research
Published 2017-06-01“…We describe the first flight demonstration, where small meteorite fragments will pile up to create a patch of real regolith under realistic asteroid conditions, paving the way for subsequent missions where landing and mobility technology can be flight-proven in the operational environment, in low-Earth orbit. The 3U design can be adapted for use onboard the International Space Station to allow for variable gravity experiments under ambient temperature and pressure for a broader range of experiments.…”
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534
Stellar Source Selections for Image Validation of Earth Observation Satellite
Published 2011-12-01“…A method of stellar source selection for validating the quality of image is investigated for a low Earth orbit optical remote sensing satellite. Image performance of the optical payload needs to be validated after its launch into orbit. …”
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535
Design and Implementation of a Narrow-Band Intersatellite Network with Limited Onboard Resources for IoT
Published 2019-09-01“…Advances in the miniaturization of satellite technology make networks in LEO (Low Earth Orbit) predestined to serve as a backhaul for narrow-band M2M communication. …”
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536
Feasibility study on Multiphysics H2-O2 combustion model for space debris removal system – NIRCSAT-X
Published 2024-03-01“…Space debris is a growing problem for low earth orbit (LEO) and geosynchronous orbit (GEO). …”
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537
Spatial Grid-Based Position Calculation Method for Satellite-Ground Communication Links
Published 2022-06-01“…With the rapid development of global satellite constellation clusters and the popularity of ground-based intelligent terminals, the interconnection between large-scale low Earth orbit satellites and ground base stations has become more frequent. …”
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538
Deployment Optimization and Computing Offloading of Space-Air-Ground Integrated Mobile Edge Computing System
Published 2023-02-01“…As a new architecture,the space-air-ground integrated communication technology can effectively improve the network service quality of ground terminal,and has attracted widespread attention in recent years.This paper studies a space-air-ground integrated mobile edge computing system,in which multiple UAVs provide low-latency edge computing services for ground devices,and low earth orbit satellites provide ubiquitous cloud computing services for ground devices.Since the deployment position of the UAVs and the scheduling scheme of computing tasks are the key factors affecting the performance of the system,the deployment position of the UAVs,the link relationship between the ground terminal and the UAVs,and the offloading ratio of computing tasks need to be jointly optimized to minimize the average task response delay of the system.Since the formally defined joint optimization problem is a mixed nonlinear programming problem,this paper designs a two-layer optimization algorithm.In the upper layer of the algorithm,a particle swarm optimization algorithm that combines genetic algorithm operators is proposed to optimize the deployment position of the UAVs,and the greedy algorithm is used in the lower layer of the algorithm to optimize the computing task offloading scheme.The extensive simulation experiments verify the feasibility and effectiveness of the proposed method.The results show that the proposed method can achieve lower average task response time,compared to other baseline methods.…”
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539
Potential radio frequency interference with the GPS L5 band for radio occultation measurements
Published 2014-11-01“…This study utilizes Systems Tools Kit (STK) simulations to gain insight into the power received by a RO satellite in low Earth orbit (LEO) from a DME–TACAN transmission as well as the amount of interfering stations. …”
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540
Satellite to buoy IoT communications in the Arctic Ocean
Published 2023-11-01“…Internet of things (IoT), to Arctic Ocean areas using Low Earth Orbit (LEO) satellites for communication to and from sensor units on the sea, has become increasingly important. …”
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