Efficient Topology Design for LEO Mega-Constellation Using Topological Structure Units with Heterogeneous ISLs [PDF]
SensorsWith the maturation of reusable launch vehicle technology and satellite mass-production capabilities, global mega-constellation projects have entered a phase of rapid expansion.
Wei Zhang +4 more
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A framework for assessing grey multitasking effectiveness of satellite communication constellation [PDF]
Scientific ReportsTask effectiveness, defined as the likelihood that a system will complete specific tasks under predefined conditions and within a given timeframe, is a crucial indicator of the system’s overall performance and fundamental quality attributes.
Ruirui Shao +5 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The quality of optical remote sensing images is largely affected by clouds and haze. In addition, the mosaicking image of multiple remote sensing images, due to objective factors such as acquiring time or climate conditions, will lead to large spectral ...
Zhipan Wang +4 more
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SiamHRnet-OCR: A Novel Deforestation Detection Model with High-Resolution Imagery and Deep Learning
Remote Sensing, 2023 Forests play a critical role in global carbon cycling, and continuous forest destruction together with other factors has accelerated global warming.
Zhipan Wang +5 more
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Analytical design and performance analysis of LEO mega chain satellite constellation
Xibei Gongye Daxue Xuebao, 2022 With the development of microsatellite technology and the growth of ground reconnaissance demand, the rapid design of a LEO constellation with minimum satellite number, low revisit time (within 10 minutes), and permanent inter-satellite links has become ...
ZHENG Pengfei, CHEN Hongyu, GUO Chongbin
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Tropospheric Attenuation in GeoSurf Satellite Constellations [PDF]
Remote Sensing, 2021 In GeoSurf satellite constellations, any transmitter/receiver, wherever it is located, is linked to a satellite with zenith paths. We have studied the tropospheric attenuation predicted for some reference sites (Canberra, Holmdel, Pasadena, Robledo, and Spino d’Adda), which also set the meridian along which we have considered sites with latitudes ...
Matricciani E., Riva C., Luini L.
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On-Orbit Calibration Method for Correction Microwave Radiometer of the HY-2 Satellite Constellation
Remote Sensing, 2023 The HY-2D satellite was successfully launched in 2022, which marks the first phase of the HY-2 satellite constellation. In order to reduce the deviation of wet path delay (WPD) between different satellites in the HY-2 satellite constellation and increase
Xiaofeng Ma +4 more
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Study on Satellite Constellation Spare Strategy Based on Markov Process
Hangkong gongcheng jinzhan, 2022 In response to the issue of reducing satellite constellation backup costs while meeting constellation availability target,it is the hot issue in current research.In this paper,the impact of different spare strategies on the performance of a low earth ...
LUO Tiansu +4 more
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Analysis of Initial Deployment Strategy for Low-Orbit Large-Scale Constellations
International Journal of Aerospace Engineering, 2022 With the development of commercial space technology, low-orbit large-scale satellite constellation has shown great development potential in communication services and military applications due to its advantages of low delay, strong signal, high coverage ...
Feifei Li +4 more
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Multi-objective optimization of earth cooperative observation hybrid satellite constellation
Xibei Gongye Daxue Xuebao, 2021 As the demand for comprehensiveness, accuracy, and data fast return of satellite remote sensing information grows, a hybrid constellation with permanent inter-satellite link becomes an inevitable choice for earth cooperative observation.
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