Browsing 2011/4 by Title

Now showing items 1-20 of 41

  • Analysis and Simulation of the Transmission Distortions of the Mobile Digital Television DVB-SH Part 1: Terrestrial Mode DVB-SH-A with OFDM 

    Polak, Ladislav; Kratochvil, Tomas (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper deals with the latest digital TV standard DVB-SH (Digital Video Broadcasting - Satellite to Handhelds) with focus on utilization of its advantages for the next generation of mobile TV broadcasting. The whole ...

  • Antenna Arrays for Tactical Communication Systems: A Comparative Study 

    Bartyzal, Jan; Bostik, Tomas; Kovacs, Peter; Mikulasek, Tomas; Puskely, Jan; Raida, Zbynek; Slama, Libor; Vorek, Jiri; Wolansky, David (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, we give a comparative study of several planar antenna concepts for reliable long range links in a tactical environment. The antenna elements are studied in terms of their electrical properties (bandwidth, ...

  • An Automatic Technique for MRI Based Murine Abdominal Fat Measurement 

    Tang, Yang; Simerly, Richard; Moats, Rex A. (Společnost pro radioelektronické inženýrství, 2011-12)
    Because of the well-known relationship between obesity and high incidence of diseases, fat related research using mice models is being widely investigated in preclinical experiments. In the present study, we developed a ...

  • BPSK Receiver Based on Recursive Adaptive Filter with Remodulation 

    Dimitrijevic, Bojan; Milosevic, Nenad; Marsalek, Roman; Nikolic, Zorica (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper proposes a new binary phase shift keying (BPSK) signal receiver intended for reception under conditions of significant carrier frequency offsets. The recursive adaptive filter with least mean squares (LMS) ...

  • Broadband Microwave Filters Based on Open Split Ring Resonators (OSRRs) and Open Complementary Split Ring Resonators (OCSRRs): Improved Models and Design Optimization 

    Duran-Sindreu, Miguel; Velez, Paris; Bonache, Jordi; Martin, Ferran (Společnost pro radioelektronické inženýrství, 2011-12)
    The paper is focused on the design of broadband bandpass filters at microwave frequencies. The proposed filters are based on a combination of open split ring resonators (OSRRs) and open complementary split ring resonators ...

  • Characterization of a Plain Broadband Textile PIFA 

    Soh, P. J.; Vandenbosch, G. A. E.; Ooi, S. L.; Nurul, H. M. R. (Společnost pro radioelektronické inženýrství, 2011-12)
    Bandwidth characteristic of a wearable antenna is one of the major factors in determining its usability on the human body. In this work, a planar inverted-F antenna (PIFA) structure is proposed to achieve a large bandwidth ...

  • Circularly-Polarized Discrete Lens Antennas in the 60-GHz Band 

    Dussopt, Laurent; Kaouach, Hamza; Lanteri, Jerome; Sauleau, Ronan (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper presents the design and demonstration of two circularly-polarized transmit-arrays operating in the 60-GHz band and generating a broadside beam and a 30°-tilted beam respectively. These arrays have a fairly simple ...

  • Common LISP as Simulation Program (CLASP) of Electronic Circuits 

    Cerny, David; Dobes, Josef (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, an unusual and efficient usage of functional programming language Common LISP as simulation program (CLASP) for electronic circuits is proposed. The principle of automatic self-modifying program has enabled ...

  • Comparison of Two Methods for Automatic Brain Morphometry Analysis 

    Schwarz, Daniel; Kasparek, Tomas (Společnost pro radioelektronické inženýrství, 2011-12)
    The methods of computational neuroanatomy are widely used; the data on their individual strengths and limitations from direct comparisons are, however, scarce. The aim of the present study was direct comparison of DBM based ...

  • Current-Mode Universal Biquad Using Current Followers: A Minimal Realization 

    Senani, R.; Gupta, S. S. (Společnost pro radioelektronické inženýrství, 2011-12)
    A new universal biquad filter is presented which employs a minimum number of active elements (only three current followers (CF)) along with a minimum number of passive components (i.e. only two resistors and two capacitors). ...

  • Data Processing in Multiport-Based Reflectometer System 

    Dvorak, Radek; Urbanec, Tomas (Společnost pro radioelektronické inženýrství, 2011-12)
    The paper describes operations with DC output voltage of multiport based system. Proposed system is based on the same principle as common six ports systems, however the used coupler has more outputs. This allows extension ...

  • DEIMOS – an Open Source Image Database 

    Klima, Milos; Fliegel, Karel; Pata, Petr; Vitek, Stanislav; Blazek, Martin; Dostal, Petr; Krasula, Lukas; Kratochvil, Tomas; Ricny, Vaclav; Slanina, Martin; Polak, Ladislav; Kaller, Ondrej; Bolecek, Libor (Společnost pro radioelektronické inženýrství, 2011-12)
    The DEIMOS (DatabasE of Images: Open Source) is created as an open-source database of images and videos for testing, verification and comparing of various image and/or video processing techniques such as enhancing, compression ...

  • Digitally Programmable Fully Differential Filter 

    Beg, Parveen; Khan, Iqbal A.; Maheshwari, Sudhanshu; Siddiqi, Muzaffer A. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper a new digitally programmable voltage mode fully differential Kerwin-Huelsman-Newcomb(KHN) filter is realized using digitally controlled CMOS fully balanced output transconductor (DCBOTA). The realized filter ...

  • Efficient Algorithm for Power Allocation in Relay-based Cognitive Radio Network 

    Ferdous, N.; Ahmed, M.; Matin, M. A.; Habiba, U. (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper addresses a cognitive radio (CR) network scenario where a relay is assigned to mitigate interference to primary users (PUs). We develop an average probability of successful secondary transmission (PSST) to ...

  • Efficient Analysis for the Design Refinement of Large Multilayered Printed Reflectarrays 

    De Vita, Francesca; De Vita, Patrizio; Freni, Angelo (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, we present an efficient numerical technique for the analysis of a reflectarray and its design refinement by the characterization of the “actual” influence of each radiating element when embedded in the antenna ...

  • EM Scattering by a Conducting Sphere Coated with a Uniaxial Layer under Arbitrary Illumination Angle in a Fixed Laboratory Frame 

    Song, Yan; Tse, Chun-Ming (Společnost pro radioelektronické inženýrství, 2011-12)
    Under a fixed laboratory frame, the electromagnetic theory of the scattering of a plane wave of arbitrary polarizations incidence from arbitrary angles by a uniaxial anisotropic medium was obtained for the first time, and ...

  • Energy Analysis of Received Signal Strength Localization in Wireless Sensor Networks 

    Moravek, Patrik; Komosny, Dan; Simek, Milan; Girbau, David; Lazaro, Antonio (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper presents the investigation of energy demands during localization of wireless nodes in ad-hoc networks. We focus on the method based on the received signal strength (RSS) to estimate the distances between the ...

  • Error Probability in Redundant Packet Sending over IP Network 

    Stanic, Mihailo; Lebl, Aleksandar; Mitic, Dragan; Markov, Zarko (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper we calculate error probability of packetized signal when method of redundant packet sending is used in IP network. The number of repeated signaling packets from each interval of packetization is determined ...

  • Experimental Study of the Sampled Labyrinth Chaos 

    Goetthans, Tomas; Petrzela, Jiri (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, some new numerical as well as experimental results connected with the so-called labyrinth chaos are presented. This very unusual chaotic motion can be generated by mathematical model involving the scalar ...

  • Faraday Rotation Correction for Passive Microwave Remote Sensing from Space 

    Lu, Wen; Yan, Wei; Han, Ding; Zhao, Xianbin (Společnost pro radioelektronické inženýrství, 2011-12)
    Faraday rotation (FR) is one of the main error sources for passive microwave remote sensing from space especially in frequencies less than or equal to 10.7 GHz. In this paper, Faraday rotation correction for the vertical ...