Now showing items 62-71 of 71

  • Semilogarithmic Nonuniform Vector Quantization of Two-Dimensional Laplacean Source for Small Variance Dynamics 

    Peric, Z.; Savic, M.; Panic, S. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this paper high dynamic range nonuniform two-dimensional vector quantization model for Laplacean source was provided. Semilogarithmic A-law compression characteristic was used as radial scalar compression characteristic ...
  • Study of Adjustable Gains for Control of Oscillation Frequency and Oscillation Condition in 3R-2C Oscillator 

    Sotner, R.; Jerabek, J.; Herencsar, N.; Hrubos, Z.; Dostal, T.; Vrba, K. (Společnost pro radioelektronické inženýrství, 2012-04)
    An idea of adjustable gain in order to obtain controllable features is very useful for design of tuneable oscillators. Several active elements with adjustable properties (current and voltage gain) are discussed in this ...
  • The Study of Properties of n-D Analytic Signals and Their Spectra in Complex and Hypercomplex Domains 

    Snopek, K. M. (Společnost pro radioelektronické inženýrství, 2012-04)
    In the paper, two various representations of a n-dimensional (n-D) real signal u(x1,x2,…,xn) are investigated. The first one is the n-D complex analytic signal with a single-orthant spectrum defined by Hahn in 1992 as the ...
  • Sub-wavelength Lithography and Variability Aware SRAM Characterization 

    Dobrovolny, P.; Miranda, M.; Zuber, P. (Společnost pro radioelektronické inženýrství, 2012-04)
    With shrinking of minimum feature size of advanced technology nodes, the impact of litho process variations on the resulting electrical parameters of printed circuits dramatically increases. Litho process variations ...
  • Testing QoE in Different 3D HDTV Technologies 

    Slanina, M.; Kratochvil, T.; Ricny, V.; Bolecek, L.; Kaller, O.; Polak, L. (Společnost pro radioelektronické inženýrství, 2012-04)
    The three dimensional (3D) display technology has started flooding the consumer television market. There is a number of different systems available with different marketing strategies and different advertised advantages. ...
  • Time-of-Flight Based Calibration of an Ultrasonic Computed Tomography System 

    Filipik, A.; Jan, J.; Peterlik, I. (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper presents a novel method for calibration of measuring geometry and of individual signal delays of transducers in ultrasonic computed tomography (USCT) systems via computational processing of multiple time-of-flight ...
  • Two-Dimensional Forward Scattering – Comparisons of Approximate and Exact Solutions 

    Schejbal, V.; Svoboda, P.; Pidanic, J.; Fiser, O. (Společnost pro radioelektronické inženýrství, 2012-04)
    Various methods for analyses of scattering are mentioned and new approximate relationships are derived. Experimental results for thin wire and several numerical simulations of forward scattering using approximate estimations, ...
  • Two-port Network Transfer Function for Power Line Topology Modeling 

    Mlynek, P.; Misurec, J.; Koutny, M.; Silhavy, P. (Společnost pro radioelektronické inženýrství, 2012-04)
    This paper deals with modeling of power line communication. A two-port network model is theoretically described and compared with measurement. A substantial part is focused on the mathematical description of distri¬bution ...
  • Variance based OFDM frame synchronization 

    Fedra, Z.; Dimitrijevic, B.; Milosevic, N.; Antic, D.; Nikolic, Z. (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper deals with a new frame synchronization scheme for OFDM systems and calculates the complexity of this scheme. The scheme is based on the computing of the detection window variance. The variance is computed in two ...
  • Voltage-Mode Highpass, Bandpass, Lowpass and Notch Biquadratic Filters Using Single DDCC 

    Chiu, W. Y.; Horng, J. W. (Společnost pro radioelektronické inženýrství, 2012-04)
    A new voltage-mode multifunction biquadratic filter using one differential difference current conveyor (DDCC), two grounded capacitors and three resistors is presented. The proposed circuit offers the following attractive ...