Now showing items 12-28 of 28

  • Fully Photonic Wireless Link for Transmission of Synchronization Signals 

    Wilfert, O.; Barcik, P.; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 2016-04)
    Rapid industrialization and increasing demand of business tools for high-speed communications supports the request for optical communications in free space. Copper cables and related technologies such as cable modems and ...
  • A High-gain and Low-scattering Waveguide Slot Antenna of Artificial Magnetic Conductor Octagonal Ring Arrangement 

    Liu, X.; Gao, J.; Cao, X. Y.; Zhao, Y.; Li, W.Q.; Li, S.J.; Li, N. (Společnost pro radioelektronické inženýrství, 2016-04)
    A novel design of high-gain and low-scattering waveguide slot antenna is proposed in this paper. Firstly the scattering pattern of artificial magnetic conductor (AMC) composite surface is estimated by array factor analysis ...
  • An Introduction to the Source Concept for Antennas 

    Hazdra, P.; Capek, M.; Masek, M.; T. Lonsky (Společnost pro radioelektronické inženýrství, 2016-04)
    Antenna parameters particularly relevant to electrically small antenna design are reviewed in this paper. Source current definitions are accentuated leading to the introduction of the source concept which advantageously ...
  • An Iterative Design with Variable Step Prototype Filter for Cosine Modulated Filter Bank 

    Chris Prema, S.; Dasgupta, K. S. (Společnost pro radioelektronické inženýrství, 2016-04)
    A systematic and self controlled prototype filter design approach for multichannel Cosine Modulated Near Perfect Reconstruction (NPR) filter bank is proposed in this paper. The primary goal is to design a prototype filter ...
  • Multiband Bandstop Filter using an I-Stub-Loaded Meandered Defected Microstrip Structure 

    Koirala, G. R.; Kim, N. Y. (Společnost pro radioelektronické inženýrství, 2016-04)
    This paper presents a compact multiband bandstop filter (BSF) that utilizes an I-stub embedded within a meandered defected microstrip structure (MDMS). The proposed design for obtaining a single stopband is analyzed by ...
  • A Novel Data Association Method for Frequency Based MIMO Systems 

    Kalkan, Y. (Společnost pro radioelektronické inženýrství, 2016-04)
    Whenever more than one target exist, the most important problem is associating the received signals to the correct targets. This problem appears for all multiple target applications such as multiple target tracking and it ...
  • A Novel System for Non-Invasive Method of Animal Tracking and Classification in Designated Area Using Intelligent Camera System 

    Matuska, S.; Hudec, R.; Kamencay, P.; Benco, M.; Radilova, M. (Společnost pro radioelektronické inženýrství, 2016-04)
    This paper proposed a novel system for non-invasive method of animal tracking and classification in designated area. The system is based on intelligent devices with cameras, which are situated in a designated area and a ...
  • Off-set Filtering Effect in SOA Based Optical Access Network 

    Udvary, E. (Společnost pro radioelektronické inženýrství, 2016-04)
    In-line and reflective semiconductor optical amplifiers (SOA and RSOA) can be effectively utilized as external optical intensity modulators. However the limited modulation bandwidth affects the application possibilities, ...
  • On the Application of the Incomplete QR Algorithm to the Analysis of Microstrip Antennas 

    Gluchowski, P.; Kucharski, A. A. (Společnost pro radioelektronické inženýrství, 2016-04)
    In this paper, we provide some insight into the usage of fast, iterative, method-of-moments (MoM) solution of integral equations (IE) describing antennas and other metallic structures immersed in a planar multilayered ...
  • Optimum Functions for Radial Wires of Monopole Antennas with Arbitrary Elevation Angles 

    Fartookzadeh, M.; Mohseni Armaki, S. H.; Razavi, S. M. J.; Rashed-Mohassel, J. (Společnost pro radioelektronické inženýrství, 2016-04)
    Monopole antennas on the earth usually use ground screen with simple radial wires to improve their radiation performance. The number of radials,N, is usually considered a constant in the screen. This paper studies the ...
  • Point Spread Functions in Identification of Astronomical Objects from Poisson Noised Image 

    Mojzis, F.; Kukal, J.; Svihlik, J. (Společnost pro radioelektronické inženýrství, 2016-04)
    This article deals with modeling of astronomical objects, which is one of the most fundamental topics in astronomical science. Introduction part is focused on problem description and used methods. Point Spread Function ...
  • Robust Tensor Analysis with Non-Greedy L1-Norm Maximization 

    Zhao, L.; Jia, W.; Wang, R.; Yu, Q. (Společnost pro radioelektronické inženýrství, 2016-04)
    The L1-norm based tensor analysis (TPCA-L1) is recently proposed for dimensionality reduction and feature extraction. However, a greedy strategy was utilized for solving the L1-norm maximization problem, which makes it ...
  • SCRLH-TL Based Sequential Rotation Feed Network for Broadband Circularly Polarized Antenna Array 

    Zong, B. F.; Wang, G. M.; Zeng, H. Y.; Wang, Y. W.; Wang, D. (Společnost pro radioelektronické inženýrství, 2016-04)
    In this paper, a broadband circularly polarized (CP) microstrip antenna array using composite right/left-handed transmission line (SCRLH-TL) based sequential rotation (SR) feed network is presented. The characteristics of ...
  • A Security Formal Verification Method for Protocols Using Cryptographic Contactless Smart Cards 

    Henzl, M.; Hanacek, P. (Společnost pro radioelektronické inženýrství, 2016-04)
    We present a method of contactless smart card protocol modeling suitable for finding vulnerabilities using model checking. Smart cards are used in applications that require high level of security, such as payment applications, ...
  • Single Tree Vegetation Depth Estimation Tool for Satellite Services Link Design 

    Hasirci, Z.; Cavdar, I. H.; Ozturk, M. (Společnost pro radioelektronické inženýrství, 2016-04)
    Attenuation caused by tree shadowing is an important factor for describing the propagation channel of satellite services. Thus, vegetation effects should be determined by experimental studies or empirical formulations. In ...
  • Small Square Reconfigurable Antenna with Switchable Single/Tri-Band Functions 

    Borhani Kakhki, M.; Rezaei, P.; Sharbati, V.; Fakharian, M. M. (Společnost pro radioelektronické inženýrství, 2016-04)
    A novel frequency reconfigurable slot antenna for suitable switchable radiations at WLAN and a tri-band at Bluetooth, WiMAX and upper WLAN applications is designed and fabricated. Switchable frequency responses are achieved ...
  • A Verilog-A Based Fractional Frequency Synthesizer Model for Fast and Accurate Noise Assessment 

    Gonzalez-Diaz, V. R.; Munoz-Pacheco, J. M.; Espinosa-Flores-Verdad, G.; Sanchez-Gaspariano, L. A. (Společnost pro radioelektronické inženýrství, 2016-04)
    This paper presents a new strategy to simulate fractional frequency synthesizer behavioral models with better performance and reduced simulation time. The models are described in Verilog-A with accurate phase noise predictions ...