Showing 1 - 20 results of 36 for search '"radio wave"', query time: 0.07s Refine Results
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    Generation of OAM Radio Waves with Three Polarizations Using Circular Horn Antenna Array by Xudong Bai, Ronghong Jin, Liang Liu, Junping Geng, Xianling Liang

    Published 2015-01-01
    “…Through reasonable configuration of phased antenna array using elements with three polarizations, the OAM radio waves with three polarizations for different states can be generated. …”
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    A Novel Radio Wave Propagation Modeling Method Using System Identification Technique over Wireless Links in East Africa by Solomon T. Girma, Dominic B. O. Konditi, Ciira Maina

    Published 2018-01-01
    “…Transmission of a radio signal through a wireless radio channel is affected by refraction, diffraction and reflection, free space loss, object penetration, and absorption that corrupt the originally transmitted signal before radio wave arrives at a receiver antenna. Even though there are many factors affecting wireless radio channels, there are still a number of radio wave propagation models such as Okumura, Hata, free space model, and COST-231 to predict the received signal level at the receiver antenna. …”
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    Key Considerations in the Modeling of Tropical Maritime Microwave Attenuations by Yee Hui Lee, Yu Song Meng

    Published 2015-01-01
    “…Multiray propagations and ducting of radio waves have been highlighted and considered in over-sea path loss modeling and prediction. …”
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    Investigation of the Polycrystalline Silicon PV Cell Efficiency in 3D Approximation versus Electromagnetic Field under Monochromatic Illumination by Adama Ouedraogo, Boubacar Soro, Ramatou Konate, Fati Amadou Oumarou, Dieudonné Joseph Bathiebo

    Published 2021-01-01
    “…This manuscript is about the electric output of the silicon (Si) photovoltaic (PV) cell versus the electromagnetic field of a radio wave and a monochromatic illumination in three-dimensional (3D) assumptions. …”
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    Effect of Antenna Parameters on the Field Coverage in Tunnel Environments by Dawei Li, Junhong Wang

    Published 2016-01-01
    “…Radio wave propagation in confined spaces is consequent upon the reflections of boundaries; thus, the radiation characteristics of the antenna have significant influence on the field coverage in the confined space. …”
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    Impact of Ship Motions on Maritime Radio Links by William Hubert, Yvon-Marie Le Roux, Michel Ney, Anne Flamand

    Published 2012-01-01
    “…This tool includes a deterministic two-ray model for radio-wave propagation over the sea surface. The geometrical 3D engine for ship motions has the advantage to be compatible with any propagation model and antenna structure.…”
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    Track-Before-Detect Procedures in AM Radio-Based Passive Radar by Yang Li, Hong Ma, Yuntao Wu, Li Cheng

    Published 2021-01-01
    “…Two types of linear equations according to the simplified radio wave propagation model are formulated, which is the key point of the proposed method. …”
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    An Efficient and Accurate 2W-PE Method for Solving Spatial Field Strength Based on CVNN and PINN by An-Qi Li, Cheng-You Yin, Qian-Qian Zhang, Han Liu

    Published 2023-01-01
    “…The proposed 2W-PE method has high computational accuracy and efficiency, which reflects the applicability of machine learning in solving the computational efficiency problem of radio wave propagation. Therefore, this study provides a very effective and reliable method for solving the spatial field in the obstacle environment.…”
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    Tropospheric Ducting: A Comprehensive Review and Machine Learning-Based Classification Advancements by Mohammed Banafaa, Ali Hussein Muqaibel

    Published 2025-01-01
    “…Tropospheric ducts, characterized by anomalous positive vertical refractive index gradients, significantly influence radio wave propagation by enhancing signal strength and extending communication ranges. …”
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    An Ionospheric Es Layer Clutter Model and Suppression in HF Surfacewave Radar by Yajun Li, Yinsheng Wei, Rongqing Xu, Zhuoqun Wang, Tianqi Chu

    Published 2013-01-01
    “…Then, based on the multiphase screen method and thorough simulation, we reached a conclusion of the high-frequency radio wave propagation’s fluctuation characteristics in the ionosphere. …”
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