Results 151 to 160 of about 3,039,671 (230)
Radio Wave Propagation and Parabolic Equation Modeling
, 2017 A thorough understanding of electromagnetic wave propagation is fundamental to the development of sophisticated communication and detection technologies.
G. Apaydin, L. Sevgi
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IEEE Transactions on Antennas and Propagation, 2023
In order to improve the prediction accuracy and robustness of radio wave propagation in the very high-frequency (VHF) band, we proposed a combination prediction model (CPM) based on the entropy weight theory and the machine learning method.
Jian Wang, Yu-Long Hao, Cheng Yang
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In order to improve the prediction accuracy and robustness of radio wave propagation in the very high-frequency (VHF) band, we proposed a combination prediction model (CPM) based on the entropy weight theory and the machine learning method.
Jian Wang, Yu-Long Hao, Cheng Yang
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A Comparative Study of Rough Sea Surface and Evaporation Duct Models on Radio Wave Propagation
IEEE Transactions on Antennas and Propagation, 2023Microwave and millimeter-wave propagations near the sea surface are greatly affected by the vertical atmospheric refractivity profile and the sea surface. To accurately simulate or predict the performance of ship radar systems, the evaporation duct model
Xiang-Ming Guo +5 more
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IEEE Antennas and Wireless Propagation Letters, 2023
With the emergence of fifth-generation (5G) and beyond wireless systems deployed along the railway, there is an increasing need for efficient propagation models in tunnels.
Hao Qin, Xing-Qi Zhang
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With the emergence of fifth-generation (5G) and beyond wireless systems deployed along the railway, there is an increasing need for efficient propagation models in tunnels.
Hao Qin, Xing-Qi Zhang
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China Communications, 2022
In order to support the future digital society, sixth generation (6G) network faces the challenge to work efficiently and flexibly in a wider range of scenarios.
Gaofeng Nie +8 more
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In order to support the future digital society, sixth generation (6G) network faces the challenge to work efficiently and flexibly in a wider range of scenarios.
Gaofeng Nie +8 more
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Prediction of Radio Wave Propagation Loss in Ultra-Rugged Terrain Areas
IEEE Transactions on Antennas and Propagation, 2021When designing and maintaining a wireless network, engineers need to first evaluate the impact of a specific propagation environment on radio wave propagation.
Huafu Li, Wenxue He, Xianguo He
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A GPU-Based Radio Wave Propagation Prediction With Progressive Processing on Point Cloud
IEEE Antennas and Wireless Propagation Letters, 2021Point cloud data (PCD) can record a high-resolution model of the environment much more efficiently than the conventional geometrical mesh. This feature makes PCD suitable for the radio channel prediction of a new environment, especially for the ...
Ming-Jie Pang +3 more
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Impact of the Ionosphere Disturbed by Rocket Plume on OTHR Radio Wave Propagation
Radio Science, 2021The main chemicals of rocket exhaust plume are released into the ionosphere, which cause three‐dimensional (3‐D) disturbances. By simulating the disturbance, we investigate the influence of ionospheric disturbance by the chemical release on the ...
Xin Ma +3 more
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Characterizing Radio Wave Propagation in Urban Street Canyon With Vehicular Blockage at 28 GHz
IEEE Transactions on Vehicular Technology, 2020The communications between two driving vehicles along a narrow street may be limited by the presence of a third vehicle blocking the transmission.
D. Solomitckii +9 more
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Radio Wave Propagation: Simulation of Free Space Propagation Path Loss
International Journal of Emerging Trends in Engineering Research, 2020In free space propagation, the propagation path between a transmitter and a receiver is direct to one another. Having no obstructions present in free space, there are minimal to no attenuation in signals. Still, there exists a free-space path loss.
A. Africa
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