Results 11 to 20 of about 705,367 (158)

Modeling Study on Energetic Particle Distribution in the Ionospheric South Atlantic Anomaly at Height of the Space Station

Space Weather
The South Atlantic Anomaly (SAA) in Earth's radiation belt is a critical region that poses significant threats to the safety of Space Stations. This region harbors a high concentration of energetic particles that can penetrate Space Stations, thereby ...
Xiang Dong, Tao Yang, Mingchen Sun, Haimeng Li, Qinglin Zhu, Yifan Zhang   +5 more
doaj   +2 more sources

Comparative Analysis of Starlight Occultation Data Processing

Atmosphere, 2023
In order to improve the inversion accuracy of stellar occultation data and to provide a reference for the selection of inversion methods with higher accuracy in the future, this study compared and analyzed the inversion effects of two different methods ...
Mingchen Sun, Qinglin Zhu, Xiang Dong, Bin Xu, Hong-Guang Wang, Xuan Cheng   +5 more
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Physical Model of D-Region Ionosphere and Preliminary Comparison with IRI and Data of MF Radar at Kunming

Atmosphere, 2023
Based on the ion continuity equation solved under chemical equilibrium, a physical model of the D-region ionosphere (60–90 km) is established. The model involves 145 ion chemical reactions and includes 23 kinds of positive ions, 11 kinds of negative ions,
Mengyan Zhu, Tong Xu, Shuji Sun, Chen Zhou, Yanli Hu, Shucan Ge, Na Li, Zhongxin Deng, Yuqiang Zhang, Xiaolei Liu   +9 more
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Weight Loss Function for the Cooperative Inversion of Atmospheric Duct Parameters

Atmosphere, 2022
Low-altitude atmospheric ducts are abnormal atmospheric phenomena in the troposphere, impacting the operation of microwave or ultrashort wave radio systems.
Jie Han, Jia-Ji Wu, Hong-Guang Wang, Qing-Lin Zhu, Li-Jun Zhang, Chao Zhang, Qian-Nan Wang, Hui Zhao   +7 more
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A Classifying-Inversion Method of Offshore Atmospheric Duct Parameters Using AIS Data Based on Artificial Intelligence

Remote Sensing, 2022
Atmospheric duct parameters inversion is an important aspect of microwave-band radar and communication system performance evaluation. AIS (Automatic Identification System) is one of the signal sources used for atmospheric duct parameters inversion ...
Jie Han, Jiaji Wu, Lijun Zhang, Hongguang Wang, Qinglin Zhu, Chao Zhang, Hui Zhao, Shoubao Zhang   +7 more
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Fast computation of the nonlocal boundary condition in finite difference parabolic equation radiowave propagation simulations [PDF]

, 2008
Finite difference parabolic equation method (FD-PEM) codes using a nonlocal boundary condition to model radiowave propagation over electrically large domains, require the computation of time consuming spatial convolution integrals. For the first time, we
Mias, Christos
core   +1 more source

Statistical Study of Ionospheric Equivalent Slab Thickness at Guam Magnetic Equatorial Location

Remote Sensing, 2021
The ionospheric equivalent slab thickness (τ) is defined as the ratio of the total electron content (TEC) to the F2-layer peak electron density (NmF2), and it is a significant parameter representative of the ionosphere.
Yuqiang Zhang, Zhensen Wu, Jian Feng, Tong Xu, Zhongxin Deng, Ming Ou, Wen Xiong, Weimin Zhen   +7 more
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Experimental Analysis of Atmospheric Ducts and Navigation Radar Over-the-Horizon Detection

Remote Sensing, 2022
Since the height of sea detection radar antenna and ship targets is relatively low, it is generally believed that its over-the-horizon detection is mainly caused by the evaporation duct at sea.
Li-Feng Huang, Cheng-Guo Liu, Hong-Guang Wang, Qing-Lin Zhu, Li-Jun Zhang, Jie Han, Yu-Sheng Zhang, Qian-Nan Wang   +7 more
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Preliminary observation results of the Coherent Beacon System onboard the China Seismo-Electromagnetic Satellite-1

Earth and Planetary Physics, 2018
This paper reports, for the first time, observation results of the Coherent Beacon System (CBS) onboard the China Seismo-Electromagnetic Satellite-1 (CSES-1).
Liang Chen, Ming Ou, YaPing Yuan, Fang Sun, Xiao Yu, WeiMin Zhen   +5 more
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Error Self-calibration Method in Spatial Spectrum Estimation

Leida xuebao, 2014
An important bottleneck in spatial spectrum estimation theory is array errors. A new error self-calibration method is presented on the basis of active error calibration and online self-calibration theories.
Huang Chuan-lu, Chao Kun, Mao Yun-zhi
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