Now showing items 1-12 of 12

  • Artificial Neural Network Utilization for FSO Link Performance Estimation 

    Mudroch, M.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper describes FSO link performance prediction based on available meteorological data using different Artificial Neural Network (ANN) approaches. Several types of ANNs were compared and their performance were evaluated. ...
  • Correction of Thermal Deviations of Fabry-Perot Resonator Based Measurements of Specific Gases in Millimeter Wave Bands 

    Libich, J.; Dvorak, P.; Piksa, P.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2012-04)
    Due to the thermal expansivity of the material used in the Fabry-Perot resonator mirrors, the resonator cavity length can change and this might therefore have an impact on the resonant frequency during high-resolution ...
  • Dispersion and Pulse Interferences Investigation for UWB Signal Propagation 

    Urban, R.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2008-09)
    The Ultra WideBand (UWB) technology utilizing nanosecond pulses has been one of the main phenomena in communications and radar applications for several years. This paper discusses the basic measurement techniques of impulse ...
  • Elliptic and Hyperbolic Dielectric Lens Antennas in mm-Waves 

    Piksa, P.; Zvanovec, S.; Cerny, P. (Společnost pro radioelektronické inženýrství, 2011-04)
    Dielectric lenses can substantially improve antenna parameters, especially the planarity of radiated waves and the antenna gain. The paper deals with their application in millimeter-wave band. The main goal concerns the ...
  • Hollow-Core Optical Fibers 

    Komanec, M.; Dousek, D.; Suslov, D.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2020-09)
    Today hollow-core optical fibers (HCF) are on the verge of surpassing the attenuation benchmark of silica single-mode optical fibers used in optical communication. Compared to solid-core optical fibers, HCFs exhibit ultra-low ...
  • Indoor Propagation Measurement for WLAN Systems Operating in 2.45 GHz ISM Band 

    Valek, M.; Zvanovec, S.; Pechač, Pavel (Společnost pro radioelektronické inženýrství, 2002-12)
    For a planning of indoor Wireless LAN systems working in the ISM band, the signal propagation prediction is needed. In this article, the measurement campaign based on two types of measurements at 2.45 GHz is introduced. ...
  • Influence of Camera Setting on Vehicle-to-Vehicle VLC Employing Undersampled Phase Shift On-Off Keying 

    Vitek, S.; Libich, J.; Luo, P.; Zvanovec, S.; Ghassemlooy, Z.; Hassan, N. B. (Společnost pro radioelektronické inženýrství, 2017-12)
    This paper focuses on the performance analysis of a camera based vehicle-to-vehicle visible light communication system employing undersampled phase shift on-off keying modulation under interference scenario. Two Nissan ...
  • Modified Octagonal Photonic Crystal Fiber for Residual Dispersion Compensation over Telecommunication Bands 

    Ahmad, R.; Komanec, M.; Suslov, D.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2018-04)
    A modified Octagonal Photonic Crystal Fiber (MO-PCF) is proposed and numerically investigated for the purpose of residual dispersion compensation in the optical transmission link. The results show that the proposed fiber ...
  • Results of Indoor Propagation Measurement Campaign at 1900 MHz 

    Pechač, Pavel; Klepal, M.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2001-12)
    For the design of indoor picocellular systems in the frequency band of 1800/2100 MHz, a signal propagation modelling is needed. Empirical and semi-empirical models represent an efficient approach to the coverage prediction. ...
  • Short-term Prediction and Detection of Dynamic Atmospheric Effects by Microwave Radiometer 

    Dvorak, P.; Mazanek, M.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2012-12)
    Specific utilization of a microwave radiometer for online monitoring, detection and, especially, prediction of particular dynamic atmospheric effects such as precipitation and cloudiness is proposed in the paper. The ...
  • Visible Light Communications towards 5G 

    Zvanovec, S.; Chvojka, P.; Haigh, P. A.; Ghassemlooy, Z. (Společnost pro radioelektronické inženýrství, 2015-04)
    5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area. Alternatively, ...
  • Wireless LAN Network Design: Site Survey or Propagation Modeling? 

    Zvanovec, S.; Pechač, Pavel; Klepal, M. (Společnost pro radioelektronické inženýrství, 2003-12)
    There are two basic ways to deploy wireless LAN access points in an indoor scenario: manual deployment using a site survey based on empirical measurements or planning using a software tool with built-in signal propagation ...