Browsing 2011/4 by Issue Date

Now showing items 1-20 of 41

  • 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 ...

  • 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). ...

  • 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 ...

  • 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 ...

  • An Performance Study for Sectorised Antenna based Doppler Diversity in High-Speed Railway Communications 

    Liu, Liu; Tao, Cheng; Qiu, Jiahui; Chen, Houjin (Společnost pro radioelektronické inženýrství, 2011-12)
    The wireless channel of High-Speed Railway communication system is rapidly time-varying. The orthogonal frequency division multiplexing transmitting over this channel will be exposed to the intercarrier interference caused ...

  • Millimeter-Waves Structures on Benzocyclobutene Dielectric Substrate 

    Costanzo, Sandra; Borgia, Antonio; Venneri, Ignazio; Di Massa, Giuseppe (Společnost pro radioelektronické inženýrství, 2011-12)
    The need of low-loss substrate materials with stable dielectric performances is a strong requirement when working at millimeter frequencies, where standard dielectrics exhibit prohibitive losses. In this paper, the authors ...

  • Miniaturized Microstrip Filter Design Using Active Learning Method 

    Rezaee, Payman; Tayarani, Majid; Knoechel, Reinhard (Společnost pro radioelektronické inženýrství, 2011-12)
    Relating coupling and external quality factor of a filter to the physical parameters of the structure which is the final step of any filter design is usually complicated due to geometrical complexities of the filter, or ...

  • 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 ...

  • Guest Editorial: Special Issue on Applied Electromagnetics and Communications 

    Bonefacić, Davor (Společnost pro radioelektronické inženýrství, 2011-12)

  • 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 ...

  • 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 ...

  • 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 ...

  • A High Accurate and Low Bias SNR Estimator: Algorithm and Implementation 

    Gong, Chao; Zhang, Bangning; Liu, Aijun; Guo, Daoxing (Společnost pro radioelektronické inženýrství, 2011-12)
    Signal to noise ratio (SNR) estimators are required for many radio engineering applications. In this paper, a SNR estimator based on the first and second order moments is derived and examined for constant envelop modulations ...

  • 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) ...

  • MATLAB-Based Applications for Image Processing and Image Quality Assessment – Part I: Software Description 

    Krasula, Lukas; Klima, Milos; Rogard, Eric; Jeanblanc, Edouard (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper describes several MATLAB-based applications useful for image processing and image quality assessment. The Image Processing Application helps user to easily modify images, the Image Quality Adjustment Application ...

  • An S-FSCW Based Multi-Channel Reader System for Beamforming Applications using Surface Acoustic Wave Sensors 

    Pfeffer, Clemens; Scheiblhofer, Stefan; Feger, Reinhard; Stelzer, Andreas (Společnost pro radioelektronické inženýrství, 2011-12)
    Interrogating multiple surface acoustic wave (SAW) sensors located within the same radar beam require techniques to separate the multiple superposing SAW sensor responses. The presented multi-channel reader features four ...

  • New Resistorless Current-mode Quadratur Oscillators Using 2 CCCDTAs and Grounded Capacitors 

    Sakul, Chaiwat; Jaikla, Winai; Dejhan, Kobchai (Společnost pro radioelektronické inženýrství, 2011-12)
    The current-mode quadrature oscillators using 2 current controlled current differencing transconductance amplifiers (CCCDTAs) and 2 grounded capacitors are presented. The proposed oscillators can provide 2 sinusoidal output ...

  • 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 ...

  • 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 ...

  • Realization of Resistorless Wave Active Filter using Differential Voltage Current Controlled Conveyor Transconductance Amplifier 

    Pandey, Neeta; Kumar, Praveen (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, a resistorless realization of high order voltage mode wave active filter based on Differential Voltage current controlled conveyor transconductance amplifier (DVCCCTA) is presented. The wave method is used ...