Showing 21 - 40 results of 54 for search '"radio wave"', query time: 0.06s Refine Results
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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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    Article
  3. 23

    Modified COST-235 Empirical Pathloss Model for Agricultural WSN Using Particle Swarm Optimization by Syahfrizal Tahcfulloh, Etty Wahyuni, Dwi Santoso, Rizkyandi Juliannanda

    Published 2025-01-01
    “…This paper explicitly examines and analyzes radio wave propagation modeling for measuring radio frequency (RF) signal strength in local agriculture's 2.4 GHz WSN system, such as Adan rice, corn, and peanuts. …”
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  4. 24

    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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    Article
  5. 25

    Improving Electron Density Predictions in the Topside of the Ionosphere Using Machine Learning on In Situ Satellite Data by S. Dutta, M. B. Cohen

    Published 2022-09-01
    “…Abstract Modeling the Earth's ionosphere is a critical component of forecasting space weather, which in turn impacts radio wave propagation, navigation and communication. …”
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    Article
  6. 26

    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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    Article
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    Deep Electron Density Depletion Near Sunset Terminator on St. Patrick's Day Storm and Its Impacts on Skywave Propagation by M. Ankita, S. Tulasi Ram, K. K. Ajith, S. Sripathi

    Published 2023-03-01
    “…Abstract The plasma density distribution in the equatorial and low latitude ionosphere can often be severely disturbed during active space weather events that can have paramount impacts on the long‐distance high frequency (HF) radio wave (Skywave) communications through the ionosphere. …”
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    Article
  9. 29

    Evaluation of Selected Modulation Techniques in Underwater Multipath Channel by Agnieszka Czapiewska, Andrzej Luksza, Ryszard Studanski, Lukasz Wojewodka, Andrzej Zak

    Published 2025-01-01
    “…However, the channel for Underwater Acoustic (UWA) communications is challenging compared to the radio wave propagation in the air. Especially in shallow waters, where the channel has strong multipath effects. …”
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    Article
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    A Comprehensive Propagation Prediction Model Comprising Microfacet Based Scattering and Probability Based Coverage Optimization Algorithm by A. S. M. Zahid Kausar, Ahmed Wasif Reza, Lau Chun Wo, Harikrishnan Ramiah

    Published 2014-01-01
    “…Although ray tracing based propagation prediction models are popular for indoor radio wave propagation characterization, most of them do not provide an integrated approach for achieving the goal of optimum coverage, which is a key part in designing wireless network. …”
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    Article
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    Propagation of Electromagnetic Wave into an Illuminated Polysilicon PV Cell by Vinci de Dieu Bokoyo Barandja, Bernard Zouma, Auguste Oscar Mackpayen, Martial Zoungrana, Issa Zerbo, Dieudonné Joseph Bathiebo

    Published 2020-01-01
    “…The increasing cohabitation between telecommunication antennas generating electromagnetic waves and solar panels poses the problem of interaction between these radio waves and solar cells. In order to study the effect of radio waves on the performance of a polycrystalline silicon solar cell in a three-dimensional approach, it is necessary to assess the attenuation of the radio wave in the illuminated polysilicon grain and also to find the expressions of its components. …”
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    Article
  12. 32

    Detection of VLF Attenuation in the Earth‐Ionosphere Waveguide Caused by X‐Class Solar Flares Using aGlobal Lightning Location Network by T. S. Anderson, M. P. McCarthy, R. H. Holzworth

    Published 2020-03-01
    “…Abstract Solar flares, energetic particles, and Earth‐impacting coronal mass ejections enhance ionization in the lower ionosphere, inhibiting radio wave propagation in the Earth‐ionosphere waveguide (EIWG). …”
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    Article
  13. 33

    Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies by Mark A. Clilverd, Craig J. Rodger, James B. Brundell, Michael Dalzell, Ian Martin, Daniel H. Mac Manus, Neil R. Thomson

    Published 2020-10-01
    “…A recently developed technique using very low frequency (VLF) radio wave data provides high‐resolution measurements of mains harmonic distortion levels. …”
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    Article
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    Global Ionospheric Scintillation Estimation Based on Phase Screen Modeling From One‐Dimensional Satellite Data by Yuhao Zheng, Chao Xiong, Luca Spogli, Rayan Iman, Lucilla Alfonsi

    Published 2025-01-01
    “…Abstract Ionospheric scintillations, which usually manifest as sudden, rapid fluctuations in radio wave signal phase and amplitude, challenge the reliability of satellite communication and navigation. …”
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    Article
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    Relationship between skin temperature and blood flow during exposure to radio frequency energy: implications for device development by Georgia E. H. Robles, David A. Nelson

    Published 2025-01-01
    “…While surface temperature response does depend upon radio wave frequency and thickness of the dermis layer, such dependencies are mild. …”
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    Article
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    ALGUNAS APLICACIONES RECIENTES DE LA TÉCNICA DE RADIO OCULTAMIENTO SATELITAL EN EL ESTUDIO DE PROCESOS ATMOSFÉRICOS by Alejandro de la Torre, Pedro Alexander, Pablo Llamedo, Rodrigo Hierro, Horacio Pessano, Andrés Odiard

    Published 2013-12-01
    “…The ray trajectory associated to a radio wave between a GPS and a LEO, while these are hiding themselves mutually due to the interposition of the Earth, is deviated due to refractivity gradients. …”
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