Poslední příspěvky

  • Feature Extraction in Radar Target Classification 

    Kurty, J.; Nebus, F.; Kus, Z. (Společnost pro radioelektronické inženýrství, 1999-09)
    This paper presents experimental results of extracting features in the Radar Target Classification process using the J frequency band pulse radar. The feature extraction is based on frequency analysis methods, the discrete-time ...
  • Some Modifications of Fractal Image Coding 

    Levicky, D.; Candik, M.; Pundzak, R. (Společnost pro radioelektronické inženýrství, 1999-09)
    In this paper some modifications of fractal image coding are presented. Proposed methods are based on correlation coefficients computing as an alternative approach to searching of similarity between blocks. The convergence ...
  • DSP Implementation of Image Compression by Multiresolutional Analysis 

    Kucera, R.; Vlcek, J.; Vlcek, K. (Společnost pro radioelektronické inženýrství, 1999-09)
    Wavelet algorithms allow considerably higher compression rates compared to Fourier transform based methods. The most important field of applications of wavelet transforms is that the image is captured in few wavelet ...
  • Discrete Orthogonal Transforms and Neural Networks for Image Interpolation 

    Oravec, M.; Polec, J. (Společnost pro radioelektronické inženýrství, 1999-09)
    In this contribution we present transform and neural network approaches to the interpolation of images. From transform point of view, the principles from [1] are modified for 1st and 2nd order interpolation. We present ...
  • A Dielectric-Loaded Horn with Periodic Strip Structure 

    Hajach, P. (Společnost pro radioelektronické inženýrství, 1999-09)
    A dielelectric-loaded horn with transverse strips is analysed theoretically. The method is based on a planar periodic strip structure and is used for a circular cylindrical and uniform waveguide model of the feed. The ...
  • CAD of Rectangular Microstrip Antennas 

    Schejbal, V. (Společnost pro radioelektronické inženýrství, 1999-09)
    New simple computer-aided design formulas for the rectangular microstrip patch antennas have been developed. The cavity model is used but the more accurate models for open-end effect of microstrip lines and the effective ...
  • New Canonical State Models of Chua's Circuit Family 

    Pospisil, J.; Brzobohaty, J.; Kolka, Zdeněk; Horska-Kreuzigerova, J. (Společnost pro radioelektronické inženýrství, 1999-09)
    Two new modified types of canonical state models simulating chaotic phenomena in piecewise-linear dynamical systems are derived. Both are topologically conjugate to Class C similarly as Chua's circuit family. Their state ...