Browsing 2010/3 by Issue Date

Now showing items 1-15 of 15

  • Ternary Chaotic Pulse Compression Sequences 

    Seventline, J. B.; Rani, D. Elizabath; Rajeswari, K. Raja (Společnost pro radioelektronické inženýrství, 2010-09)
    In this paper method available for generating ternary sequences is discussed. These sequences are useful in many applications but specifically in synchronization of block codes and pulse compression in radar. The ternary ...

  • A Novel Current-Mode Full-Wave Rectifier Based on One CDTA and Two Diodes 

    Khateb, Fabian; Vavra, Jiri; Biolek, Dalibor (Společnost pro radioelektronické inženýrství, 2010-09)
    Precision rectifiers are important building blocks for analog signal processing. The traditional approach based on diodes and operational amplifiers (OpAmps) exhibits undesirable effects caused by limited OpAmp slew rate ...

  • Fine-Tuning on the Effective Patch Radius Expression of the Circular Microstrip Patch Antennas 

    Yilmaz, Asim Egemen (Společnost pro radioelektronické inženýrství, 2010-09)
    In this study, the effective patch radius expression for the circular microstrip antennas is improved by means of several manipulations. Departing from previously proposed equations in the literature, one of the most ...

  • Simulation and Measurement of the Transmission Distortions of the Digital Television DVB-T/H Part 2: Hierarchical Modulation Performance 

    Stukavec, Radim; Kratochvil, Tomas (Společnost pro radioelektronické inženýrství, 2010-09)
    The paper deals with the second part of results of the Czech Science Foundation research project that was aimed into the simulation and measurement of the transmission distortions of the digital terrestrial television ...

  • FGMOS Based Voltage-Controlled Grounded Resistor 

    Pandey, Rishikesh; Gupta, Maneesha (Společnost pro radioelektronické inženýrství, 2010-09)
    This paper proposes a new floating gate MOSFET (FGMOS) based voltage-controlled grounded resistor. In the proposed circuit FGMOS operating in the ohmic region is linearized by another conventional MOSFET operating in the ...

  • Probabilistic Model for Free-Space Optical Links Under Continental Fog Conditions 

    Khan, Muhammad Saeed; Awan, Muhammad Saleem; Muhammad, Sajid Sheikh; Faisal, Muhammad; Marzuki; Nadeem, Farukh; Leitgeb, Erich (Společnost pro radioelektronické inženýrství, 2010-09)
    The error characteristics of a free-space optical (FSO) channel are significantly different from the fiber based optical links and thus require a deep physical understanding of the propagation channel. In particular different ...

  • Fabrication Errors Influence on the Sperical Array Radiation Pattern 

    Rupcic, Slavko; Mandric, Vanja; Rimac-Drlje, Snjezana (Společnost pro radioelektronické inženýrství, 2010-09)
    The paper studies fabrication errors influence on the radiation pattern of a spherical antennas array. The developed Moment Method (MoM) program analyzes a particular influence of an azimuth and elevation position and local ...

  • BER Performance Simulation of Generalized MC DS-CDMA System with Time-Limited Blackman Chip Waveform 

    Develi, Ibrahim; Kockaya, Kenan (Společnost pro radioelektronické inženýrství, 2010-09)
    Multiple access interference encountered in multicarrier direct sequence-code division multiple access (MC DS-CDMA) is the most important difficulty that depends mainly on the correlation properties of the spreading sequences ...

  • Admission Control Techniques for UMTS System 

    Kejik, Petr; Hanus, Stanislav (Společnost pro radioelektronické inženýrství, 2010-09)
    Universal mobile telecommunications system (UMTS) is one of the 3rd generation (3G) cell phone technologies. The capacity of UMTS is interference limited. Radio resources management (RRM) functions are therefore used. They ...

  • Simply Adjustable Sinusoidal Oscillator Based on Negative Three-Port Current Conveyors 

    Sotner, Roman; Hrubos, Zdenek; Slezak, Josef; Dostal, Tomas (Společnost pro radioelektronické inženýrství, 2010-09)
    The paper deals with sinusoidal oscillator employing two controlled second-generation negative-current conveyors and two capacitors. The proposed oscillator has a simple circuit configuration. Electronic (voltage) adjusting ...

  • A Novel Bandpass Filter Using a Combination of Open-Loop Defected Ground Structure and Half-Wavelength Microstrip Resonators 

    Vagner, Petr; Kasal, Miroslav (Společnost pro radioelektronické inženýrství, 2010-09)
    This paper deals with a defected ground structure (DGS) open-loop resonator analysis and bandpass filter design, using coupled DGS and microstrip resonators. The combination of DGS and microstrip resonators allows using ...

  • Critical Comparison of Multi-objective Optimization Methods: Genetic Algorithms versus Swarm Intelligence 

    Sedenka, Vladimir; Raida, Zbynek (Společnost pro radioelektronické inženýrství, 2010-09)
    The paper deals with efficiency comparison of two global evolutionary optimization methods implemented in MATLAB. Attention is turned to an elitist Non-dominated Sorting Genetic Algorithm (NSGA-II) and a novel multi-objective ...

  • Evolution Strategies in the Multipoint Connections Routing 

    Krulikovska, Lenka; Filanova, Jana; Pavlovic, Juraj (Společnost pro radioelektronické inženýrství, 2010-09)
    Routing of multipoint connections plays an important role in final cost and quality of a found connection. New algorithms with better results are still searched. In this paper, a possibility of using the evolution strategies ...

  • Author's comment on: "Electrical Analogy to an Atomic Force Microscope" 

    Kucera, Ondrej (Společnost pro radioelektronické inženýrství, 2010-09)
    In [1] I used assumptions which proved to be wrong in further research. Corrections are given in this comment.

  • A Complete Video Coding Chain Based on Multi-Dimensional Discrete Cosine Transform 

    Fryza, Tomas (Společnost pro radioelektronické inženýrství, 2010-09)
    The paper deals with a video compression method based on the multi-dimensional discrete cosine transform. In the text, the encoder and decoder architectures including the definitions of all mathematical operations like the ...