Results 11 to 20 of about 29,693 (250)
Data in Brief, 2023 This dataset consists of signatures of human vital signs that are recorded by ultrawideband radar and lidar sensors. The data acquisition scene considers the human posture models(supine/lateral/facedown), different radar antenna angles towards the human,
Cansu Eren +2 more
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Research on Satellite Communication System’s Design and Verifi cation Based on SysML
天地一体化信息网络, 2021 As an important part of the space-integrated-ground information network, the satellite communication system has become a research hotspot.The system modeling language (SysML), which is the most popular digital design language, was adopted to analyzing ...
Can LIAO +3 more
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A Study on Fuel Estimation Algorithms for a Geostationary Communication & Broadcasting Satellite [PDF]
Journal of Astronomy and Space Sciences, 2000 It has been developed to calculate fuel budget for a geostationary communication and broadcasting satellite. It is quite essential that the pre-launch fuel budget estimation must account for the deterministic transfer and drift orbit maneuver ...
Jong Won Eun
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Traffic simulation of broadband LEO constellation satellite communication system
Dianzi 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
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Architecture and Features of Mobile Communication Satellite System for Mobile Phone
天地一体化信息网络, 2023 The development and construction of mobile communication satellite systems for individual users worldwide have been ongoing for over thirty years, and the technological level and industrial scale of satellite mobile communication are constantly maturing ...
Dong CHEN +3 more
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天地一体化信息网络, 2023 The integrated satellite-terrestrial communication system is considered one of the development trends of future communication systems for its ability to provide seamless coverage and service.However, the differences between satellite and terrestrial ...
Rui DING +5 more
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Development and Prospect of Chinese Lunar Relay Communication Satellite
Space: Science & Technology, 2021 Relay communication satellites play a very important role on the lunar far side and pole areas exploration missions. Queqiao relay communication satellite was developed to provide relay communication support for the lander and the rover of Chang’e-4 ...
Lihua Zhang
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Applied Sciences, 2022 The terahertz frequency band has the advantages of having a large bandwidth, narrow beam, strong penetration, and high security, and is an important direction for the frequency expansion of next-generation satellite communications.
Yuanzhi He, Chensheng Ma
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Seamless Weather Data Integration in Trajectory-Based Operations Utilizing Geospatial Information
Remote SensingIn this study, a 4D trajectory weather (4DT-Wx) prototype system was developed and evaluated for effective weather information integration in trajectory-based operation (TBO) environments. The system has two key distinguishing features: multi-model-based
Sang-Il Kim +4 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Early risk stratification may support clinical decision‐making in spontaneous intracerebral hemorrhage (ICH). We aimed to develop and internally validate HAGIV, a score integrating frequency of imaging markers (FIM), a time‐adjusted non‐contrast computed tomography (CT) metric of hematoma expansion, with established predictors for 90‐
Lei Song +10 more
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