Now showing items 6-9 of 9

  • Robust GPS Satellite Signal Acquisition Using Lifting Wavelet Transform 

    Djebouri, D.; Djebbari, A.; Djebbouri, M. (Společnost pro radioelektronické inženýrství, 2006-04)
    A novel GPS satellite signal acquisition scheme that utilizes lifting wavelet to improve acquisition performance is proposed. Acquisition in GPS system is used to calculate the code phase (or shift) and find the pseudo-range, ...
  • Simple Chaotic Oscillator: From Mathematical Model to Practical Experiment 

    Petrzela, J.; Kolka, Zdeněk; Hanus, S. (Společnost pro radioelektronické inženýrství, 2006-04)
    This paper shows the circuitry implementation and practical verification of the autonomous nonlinear oscillator. Since it is described by a single third-order differential equation, its state variables can be considered ...
  • UWB Propagation through Walls 

    Schejbal, V.; Bezousek, P.; Cermak, D.; Nemec, Z.; Fiser, O.; Hajek, M. (Společnost pro radioelektronické inženýrství, 2006-04)
    The propagation of ultra wide band (UWB) signals through walls is analyzed. For this propagation studies, it is necessary to consider not only propagation at a single frequency but in the whole band. The UWB radar output ...
  • X-Band PLL Synthesizer 

    Vagner, P.; Kutin, P. (Společnost pro radioelektronické inženýrství, 2006-04)
    This paper deals with design and realization of a PLL synthesizer for the microwave X−band. The synthesizer is intended for use as a local oscillator in a K−band downconverter. The design goal was to achieve very low phase ...