Now showing items 32-51 of 71

  • High Input Impedance Voltage-Mode Universal Biquadratic Filters With Three Inputs Using Three CCs and Grounding Capacitors 

    Horng, J. W.; Hsu, C. H.; Tseng, C. Y. (Společnost pro radioelektronické inženýrství, 2012-04)
    Two current conveyors (CCs) based high input impedance voltage-mode universal biquadratic filters each with three input terminals and one output terminal are presented. The first circuit is composed of three differential ...
  • High Power Solid State Retrofit Lamp Thermal Characterization and Modeling 

    Jakovenko, J.; Formanek, J.; Janicek, V.; Husak, M.; Werkhoven, R. (Společnost pro radioelektronické inženýrství, 2012-04)
    Thermal and thermo-mechanical modeling and characterization of solid state lightening (SSL) retrofit LED lamp are presented in this paper. Paramount importance is to design SSL lamps for reliability, in which thermal and ...
  • High-Efficient Parallel CAVLC Encoders on Heterogeneous Multicore Architectures 

    Su, H. Y.; Wen, M.; Ren, J.; Wu, N.; Chai, J.; Zhang, C. Y. (Společnost pro radioelektronické inženýrství, 2012-04)
    This article presents two high-efficient parallel realizations of the context-based adaptive variable length coding (CAVLC) based on heterogeneous multicore processors. By optimizing the architecture of the CAVLC encoder, ...
  • Immediate Analysis of Periodic Steady States in Switched DC-DC Converters via SPICE 

    Biolek, Dalibor; Biolková, Viera; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 2012-04)
    The method of immediate analysis of periodic steady states in switched DC-DC converters operating in the continuous current mode is described. The initial conditions, which correspond to the periodic steady state, are found ...
  • Implementation and Investigation of a Compact Circular Wide Slot UWB Antenna with Dual Notched Band Characteristics using Stepped Impedance Resonators 

    Yingsong Li; Wenxing Li; Tao Jiang (Společnost pro radioelektronické inženýrství, 2012-04)
    A coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with dual notched band characteristics is presented in this paper. The circular wide slot and circular radiation patch are utilized to broaden the impedance ...
  • Improved Depth Map Estimation from Stereo Images based on Hybrid Method 

    Kamencay, P.; Breznan, M.; Jarina, R.; Lukac, P.; Zachariasova, M. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this paper, a stereo matching algorithm based on image segments is presented. We propose the hybrid segmentation algorithm that is based on a combination of the Belief Propagation and Mean Shift algorithms with aim to ...
  • In-system Jitter Measurement Based on Blind Oversampling Data Recovery 

    Kubicek, M.; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper describes a novel method for simple estimation of jitter contained in a received digital signal. The main objective of our research was to enable a non-invasive measurement of data link properties during a regular ...
  • Investigation of Accurate Far-End Crosstalk Modeling in Metallic Cables 

    Lafata, P. (Společnost pro radioelektronické inženýrství, 2012-04)
    Crosstalk and especially far-end crosstalk (FEXT) represents the most serious source of disturbance in today’s digital transmission systems. It mostly limits the information capacity of current xDSL digital subscriber lines ...
  • Lossy/Lossless Floating/Grounded Inductance Simulation Using One DDCC 

    Ibrahim, M. A.; Minaei, S.; Yuce, E.; Herencsar, N.; Koton, J. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this work, we present new topologies for realizing one lossless grounded inductor and two floating, one lossless and one lossy, inductors employing a single differential difference current conveyor (DDCC) and a minimum ...
  • MATLAB-based Applications for Image Processing and Image Quality Assessment – Part II: Experimental Results 

    Krasula, L.; Klima, M.; Rogard, E.; Jeanblanc, E. (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper provides an overview of some possible usage of the software described in the Part I. It contains the real examples of image quality improvement, distortion simulations, objective and subjective quality assessment ...
  • Measurement and Analysis of Real Imaging Systems 

    Mojzis, F.; Svihlik, J.; Fliegel, K.; Knazovicka, L.; Jerhotova, E. (Společnost pro radioelektronické inženýrství, 2012-04)
    This paper is devoted to statistical analysis of noise generated in real imaging systems and noise suppression methods. The introductory part is focused on description of imaging systems, image degradations, and noise types ...
  • Measurement of the Structure Constant of Refractivity at Optical Wavelengths Using a Scintillometer 

    Grabner, M.; Kvicera, V. (Společnost pro radioelektronické inženýrství, 2012-04)
    The structure constant of the atmospheric refractive index is used for characterizing the turbulence strength and for predicting the scintillation of electromagnetic waves in atmosphere. It is measured continuously in ...
  • The Modelling of Stereoscopic 3D Scene Acquisition 

    Hasmanda, M.; Riha, K. (Společnost pro radioelektronické inženýrství, 2012-04)
    The main goal of this work is to find a suitable method for calculating the best setting of a stereo pair of cameras that are viewing the scene to enable spatial imaging. The method is based on a geometric model of a stereo ...
  • Mutual Interference of Frequency Hopping with Collision Avoidance Systems 

    Pust, R.; Burda, K. (Společnost pro radioelektronické inženýrství, 2012-04)
    The aim of this article is to quantify and analyze mutual interference of Frequency Hopping with Collision Avoidance (FH/CA) systems. The FH/CA system is a frequency hopping system where stations select the least jammed ...
  • New CMOS Realization of Voltage Differencing Buffered Amplifier and Its Biquad Filter Applications 

    Kaçar, F.; Yeşil, A.; Noori, A. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this paper, new biquad filter configuration using a recently introduced active element, namely Voltage Differencing Buffered Amplifier (VDBA), is proposed. This block has high impedance input terminals and low impedance ...
  • New Gain Controllable Resistor-less Current-mode First Order Allpass Filter and its Application 

    Jaikla, W.; Noppakarn, A.; Lawanwisut, S. (Společnost pro radioelektronické inženýrství, 2012-04)
    New first order allpass filter (APF) in current mode, constructed from 2 CCCCTAs and grounded capacitor, is presented. The current gain and phase shift can be electronically /orthogonally controlled. Low input and high ...
  • A New Model of Multiphonon Excitation Trap-Assisted Band-to-Band Tunneling 

    Racko, J.; Mikolasek, M.; Grmanova, A.; Breza, J.; Benko, P.; Gallo, O.; Harmatha, L. (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper describes a new approach to calculating the currents in a pn-diode based on the extension of the Shockley-Read-Hall recombination-generation model. The presented theory is an alternative to Schenk’s model of ...
  • New Universal Current-mode Biquad Using Only Three ZC-CFTAs 

    Singh, B.; Singh, A. K.; Senani, R. (Společnost pro radioelektronické inženýrství, 2012-04)
    The objective of this paper is to present a new universal Current-mode biquad capable of providing all the five basic filter functions, namely, low pass (LP), Band pass (BP), high pass (HP), Band reject (BR) and all pass ...
  • Noise Measurement Setup for Quartz Crystal Microbalance 

    Sedlak, P.; Majzner, J.; Sikula, J.; Hajek, K. (Společnost pro radioelektronické inženýrství, 2012-04)
    Quartz crystal microbalance (QCM) is a high sensitive chemical sensor which has found widespread spectrum of applications. There are several mechanisms that are related to fluctuation phenomena. Since the aim of our research ...
  • Novel Compact and High Selectivity Dual-band BPF with Wide Stopband 

    Wang, L.; Guan, B.-R. (Společnost pro radioelektronické inženýrství, 2012-04)
    A novel type of compact and high selectivity dual-band bandpass filter (BPF) incorporating a dual-mode defected ground structure resonator (DDGSR) and a dual-mode open-stub loaded stepped impedance resonator (DOLSIR) is ...