Showing 21 - 36 results of 36 for search '"radio wave"', query time: 0.06s Refine Results
  1. 21

    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
  2. 22

    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
  3. 23

    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
  4. 24

    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
  5. 25

    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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    Article
  6. 26

    OPTIMIZING ENERGY CONSUMPTION FOR WIRELESS SENSOR NETWORKS by Lại Thị Nhung, Nguyễn Thị Hòa, Lê Đăng Nguyên, Nguyễn Gia Như, Đặng Thanh Hải

    Published 2018-07-01
    “…The information collected by the sensors will be transmitted to the base station by radio waves. From here, the data is analyzed and processed to make decisions. …”
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    Article
  7. 27

    Predicting low ionospheric parameters and low frequency sky wave propagation strength using machine learning by Jian Wang, Chengsong Duan, Qiao Yu, Cheng Yang

    Published 2025-02-01
    “…Abstract Studying the propagation prediction of low-frequency (LF) radio waves is very significant for supporting applications in fixed and mobile long-distance communication, remote navigation, and timing service. …”
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    Article
  8. 28

    Wind Turbine Clutter Mitigation in Coastal UHF Radar by Jing Yang, Chao Pan, Caijun Wang, Dapeng Jiang, Biyang Wen

    Published 2014-01-01
    “…The size of a wind turbine is much larger than the wavelength of radio waves at UHF band, which results in large radar cross section. …”
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    Article
  9. 29

    Micro-Trivium: A lightweight algorithm designed for radio frequency identification systems by Shiyong Zhang, Gongliang Chen

    Published 2017-02-01
    “…Radio frequency identification technology transmits an object’s identification as a unique serial number—using radio waves as the transmission carrier—and is becoming an important building block for distributed sensor networks. …”
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    Article
  10. 30

    Radar Characterization of Salt Layers in Europa's Ice Shell as a Window Into Critical Ice‐Ocean Exchange Processes by N. S. Wolfenbarger, D. D. Blankenship, D. A. Young, K. M. Scanlan, C. J. Chivers, D. Findlay, G. B. Steinbrügge, K. Chan, C. Grima, K. M. Soderlund, D. M. Schroeder

    Published 2025-01-01
    “…Both missions are equipped with ice‐penetrating radars which will transmit radio waves into the subsurface, recording reflections from interfaces defined by contrasts in ice shell dielectric properties. …”
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    Article
  11. 31

    DESIGN ANALYSIS OF A LOW-COST PARABOLIC ANTENNA FOR DEVELOPING NATION by FRANK ONAIFO, ALEXANDER AKPOFURE OKANDEJI, FISAYO IDOWU, OMOWUMMI GRACE OLASUNKANMI, OLAWALE OLALUWOYE, OLAOLU FOLORUNSHO

    Published 2020-01-01
    “…Metallic parabolic antenna contributes more to signal loss by reflecting radio waves. The Parabolic antenna is designed to receive microwave signals in the K-band with the down converter converting it to very high frequency (VHF) and ultra-high frequency (UHF) employing the super-heterodyning principle. …”
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    Article
  12. 32

    Deep learning–based resource allocation for secure transmission in a non-orthogonal multiple access network by Miao Zhang, Yao Zhang, Qian Cen, Shixun Wu

    Published 2022-06-01
    “…In addition, there exists an eavesdropper that intends to decode the confidential information due to the broadcast nature of radio waves. Hence, we formulate the optimization problem as a secrecy rate maximization problem. …”
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    Article
  13. 33

    Pulsar Scattering as a Probe for Structures in the Interstellar Medium by Qiuyi He, Xun Shi, Guangxing Li

    Published 2025-01-01
    “…Due to the inhomogeneity of electron number density, radio waves emitted by pulsars undergo scattering as they pass through the interstellar medium (ISM). …”
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    Article
  14. 34

    Télémonitorage des grandes fonctions physiologiques chez les primates vigiles by Guy Germain

    Published 2011-06-01
    “…They also stem from the need to control in the laboratory, experimental treatments with a minimal disturbance of their social behavior. Radio waves are an excellent transmission signal to monitor the animals because they can spread information rapidly and over long distances through the air. …”
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  15. 35

    Strong turbulent flow in the subauroral region in the Antarctic can deteriorate satellite-based navigation signals by D. S. Kotova, A. A. Sinevich, A. A. Chernyshov, D. V. Chugunin, Y. Jin, W. J. Miloch

    Published 2025-01-01
    “…Such high velocities and structured plasma can affect trans-ionospheric radio waves and lead to scintillations in the received signal. …”
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    Article
  16. 36

    Lost in Broadcasting: League of Nations, International Broadcasting and Swiss Neutrality by A. S. Khodnev

    Published 2023-11-01
    “…Ultimately, in 1947, the LN's liquidation commission transferred the remaining assets of Radio-Nations and its radio waves to the United Nations.…”
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