• New Simple CMOS Realization of Voltage Differencing Transconductance Amplifier and Its RF Filter Application 

  Yesil, Abdullah; Kacar, Firat; Kuntman, Hakan (Společnost pro radioelektronické inženýrství, 2011-09)

  The voltage differencing transconductance amplifier (VDTA) is a recently introduced active element for analog signal processing. However, the realization of VDTA is not given by any author yet. In this work, a new and ...

• A Low Complexity Partial Transmit Sequence for Peak to Average Power Ratio Reduction in OFDM Systems 

  Varahram, Pooria; Ali, Borhanuddin Mohd (Společnost pro radioelektronické inženýrství, 2011-09)

  Partial transmit sequence (PTS) is one of the most important techniques for reducing the peak to average power ratio (PAPR) in OFDM systems. This paper presents a low complexity PTS scheme by applying a new phase sequence. ...

• Network Model of the CPE 

  Valsa, Juraj; Dvorak, Petr; Friedl, Martin (Společnost pro radioelektronické inženýrství, 2011-09)

  Analysis of fractal systems (i.e. systems described by fractional differential equations) necessitates to create an electrical analog model of a crucial subsystem called Constant Phase Element (CPE). The paper describes a ...

• Novel Resistorless First-Order Current-Mode Universal Filter Employing a Grounded Capacitor 

  Arslanalp, Remzi; Tola, Abdullah T.; Yuce, Erkan (Společnost pro radioelektronické inženýrství, 2011-09)

  In this paper, a new bipolar junction transistor (BJT) based configuration for providing first-order resistorless current-mode (CM) all-pass, low-pass and high-pass filter responses from the same configuration is suggested. ...

• New CMOS-based Resistor-less Current-mode First-order All-pass Flter Using Only Ten Transistors and One External Capacitor 

  Lahiri, Abhirup (Společnost pro radioelektronické inženýrství, 2011-09)

  This paper proposes a new, compact CMOS realization of current-mode (CM) first-order all-pass filter (APF) using no external resistors. The circuit is created using only ten transistors and one external capacitor. The ...

• Single-Input Five-Output Electronically Tunable Current-Mode Biquad Consisting of Only ZC-CFTAs and Grounded Capacitors 

  Satansup, Jetsdaporn; Tangsrirat, Worapong (Společnost pro radioelektronické inženýrství, 2011-09)

  This paper presents an electronically tunable current-mode biquadratic filter constructing with four Z-copy current follower transconductance amplifiers (ZC-CFTAs) and only two grounded capacitors. The presented filter can ...

• Power Ramped-up Preamble RF Fingerprints of Wireless Transmitters 

  Yuan, Honglin; Bao, Zhihua; Hu, Aiqun (Společnost pro radioelektronické inženýrství, 2011-09)

  In this paper, we propose a novel kind of RF fingerprints (RFF) with better discriminability than typical RFF for identifying preamble-based wireless transmitters. First, the equivalent model of RFF identification system ...

• CFOA-Based Lossless and Lossy Inductance Simulators 

  Kacar, Firat; Kuntman, Hakan (Společnost pro radioelektronické inženýrství, 2011-09)

  Inductance simulator is a useful component in the circuit synthesis theory especially for analog signal processing applications such as filter, chaotic oscillator design, analog phase shifters and cancellation of parasitic ...

• Exploiting Temporal Context in High-Resolution Movement-Related EEG Classification 

  Dolezal, Jaromir; Stastny, Jakub; Sovka, Pavel (Společnost pro radioelektronické inženýrství, 2011-09)

  The contribution presents an application of a movement-related EEG temporal development classification which improves the classification score of voluntary movements controlled by closely localized regions of the brain. A ...

• A Novel QAM Technique for High Order QAM Signaling 

  Ozen, Ali (Společnost pro radioelektronické inženýrství, 2011-09)

  The paper proposes a novel spread quadrature amplitude modulation (S-QAM) technique with high SNR improvement for high-order QAM channels. Simulated and experimental bit error rate (BER) performance analyses of the proposed ...

• Current-Mode Sixth-Order Elliptic Band-Pass Filter Using MCDTAs 

  Li, Yongan (Společnost pro radioelektronické inženýrství, 2011-09)

  In this paper, a modified CDTA (MCDTA) is presented and the current-mode second-order band-pass, high-pass notch, and low-pass notch circuits using MCDTAs are given. Moreover, a current-mode sixth-order elliptic band-pass ...

• Location Privacy on DVB-RCS using a “Spatial-Timing” Approach 

  Aggelis, Aggelis; Sarris, Emmanuel T. (Společnost pro radioelektronické inženýrství, 2011-09)

  DVB-RCS synchronization scheme on the Return Channel requires the RCSTs to be programmed with their location coordinates with an accuracy of no more than a few kilometers. RCSTs use this location information in their ranging ...

• Supplementary Inductance Simulator Topologies Employing Single DXCCII 

  Metin, Bilgin (Společnost pro radioelektronické inženýrství, 2011-09)

  In this study, six grounded inductance simulator circuits are presented including additional useful features in comparison to previous dual-X current conveyor (DXCCII) based implementations. To demonstrate the performance ...

• Error Concealment Method Based on Motion Vector Prediction Using Particle Filters 

  Hrusovsky, Branislav; Mochnac, Jan; Marchevsky, Stanislav (Společnost pro radioelektronické inženýrství, 2011-09)

  Video transmitted over unreliable environment, such as wireless channel or in generally any network with unreliable transport protocol, is facing the losses of video packets due to network congestion and different kind of ...

• Acceleration of Marching on in Time Method for TD-EFIE by Equivalent Dipole Moment Method and its Analysis 

  Lacik, Jaroslav (Společnost pro radioelektronické inženýrství, 2011-09)

  The paper is focused on the application of the equivalent dipole moment (EDM) method to accelerate the marching on in time (MOT) method for the time domain electric field integral equation (TD-EFIE). The implicit MOT scheme ...

• Excess Loss Model for Low Elevation Links in Urban Areas for UAVs 

  Simunek, Michal; Pechac, Pavel; Fontan, Fernando P. (Společnost pro radioelektronické inženýrství, 2011-09)

  In this paper we analyze the link between an UAV and a ground control station in an urban area. This link shows a unique geometry which is somewhere in between the purely terrestrial (e.g., a macro-cell channel) and the ...

• MRFD Method for Scattering From Three Dimensional Dielectric Bodies 

  Yagli, Ahmet Fazil (Společnost pro radioelektronické inženýrství, 2011-09)

  A three-dimensional multiresolution frequency domain (MRFD) method is established to compute bistatic radar cross sections of arbitrarily shaped dielectric objects. The proposed formulation is successfully verified by ...

• Study of the Temperature Turbulences Effect upon Optical Beam in Atmospheric Optical Communication 

  Dvorak, Filip; Diblik, Jan (Společnost pro radioelektronické inženýrství, 2011-09)

  The paper deals with the study of the effect of temperature turbulences upon the optical beam. The polarization parameters of optical radiation sources and different optical beam states of polarization have been investigated. ...

• Log-Domain Current-mode Quadrature Sinusoidal Oscillator 

  Prommee, Pipat; Prapakorn, Nattawit; Swamy, M. N. S. (Společnost pro radioelektronické inženýrství, 2011-09)

  A log-domain current-mode quadrature sinusoidal oscillator based on lossless integrators is presented. The circuit is a direct realization of a first-order differential equation for obtaining the lossy and lossless ...

• Electronically Tunable Current-mode Multiphase Sinusoidal Oscillator Employing CCCDTA-based Allpass Filters with Only Grounded Passive Elements 

  Jaikla, Winai; Prommee, Pipat (Společnost pro radioelektronické inženýrství, 2011-09)

  This study describes the design of a multiphase sinusoidal oscillator (MSO) using CCCDTA-based allpass filters with grounded capacitors. The oscillation condition and oscillation frequency can be electronically/orthogonally ...

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