Poslední příspěvky

  • Exploration of Neural Networks in the Design of Microwave Structures 

    Z. Raida (Společnost pro radioelektronické inženýrství, 1999-04)
    Artificial neural networks can be used for modeling microwave structures in order to obtain computationally efficient models of investigated systems. In conjunction with proper optimization techniques, these neural models ...
  • High Frequency Components Recovery in Music Signals 

    Brejl, M.; Sebesta, V. (Společnost pro radioelektronické inženýrství, 1999-04)
    A new technique is presented which improves the subjective quality of band-limited music by recovery of high frequency components. Sequences of harmonics are found in the band-limited signal and these sequences are expanded ...
  • Network Communication by Optical Directional Link 

    Wilfert, O.; Biolková, Viera (Společnost pro radioelektronické inženýrství, 1999-04)
    In this article, infrared point-to-point technologies (optical directional links) are discussed which are designed for digital transmissions. Optical directional links (ODLs) are transparent for the SDH/ATM, FDDI-II, ...
  • Computer Simulation of the Transmission Channel Influence in the Video Signal 

    Pistek, M.; Ricny, V. (Společnost pro radioelektronické inženýrství, 1999-04)
    This article contains the time-spatial and spectral description of video signals. There are described methods for computer simulations of real transmission channels and for determination of their influence upon the video ...
  • Synchronous Counters Implemented in the PLD Devices 

    Kolouch, J. (Společnost pro radioelektronické inženýrství, 1999-04)
    The implementability of synchronous counters in the Programmable Logic Devices (PLD) is discussed in this paper. The most commonly used counters are analysed from this point of view. The expressions for their individual ...
  • Experimental Satellite Phase 3D before Launch 

    Kasal, M.; Sebesta, J. (Společnost pro radioelektronické inženýrství, 1999-04)
    To build a satellite can be a dream for many engineers. We are happy that we can participate in the AMSAT PHASE 3D project. Our responsibility is very high because one of our on-board receivers is the main one of the command ...
  • Automatically Derived Units in the Speech Processing 

    Cernocky, J. (Společnost pro radioelektronické inženýrství, 1999-04)
    Current systems for recognition, synthesis, very low bit-rate (VLBR) coding and text-independent speaker verification rely on sub-word units determined using phonetic knowledge. This paper presents an alternative to this ...
  • ARC Filters Using Only Followers 

    Dostal, T. (Společnost pro radioelektronické inženýrství, 1999-04)
    Several structures of the active RC filters using non-inverting voltage unity-gain followers and dual current positive followers are given in this paper. These structures can be suitable implemented by the positive second ...
  • Generalized Canonical State Models of Third-Order Piecewise-Linear Dynamical Systems And Their Applications 

    Pospisil, J.; Brzobohaty, J.; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 1999-04)
    The elementary canonical state models of the third-order autonomous dynamical systems, topologically conjugate to Chua's circuit family, are generalized for any continuous and odd symmetrical piecewise-linear (PWL) feedback ...
  • SNAP - Program for Symbolic Analysis 

    Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 1999-04)
    The paper deals with a program SNAP for symbolic analysis of linear circuits in frequency domain. The program is suitable for analysis of circuits with ideal network elements to explore basic principles of their operation. ...