Poslední příspěvky

  • Multi-Core DSP Based Parallel Architecture for FMCW SAR Real-Time Imaging 

    Gu, C. F.; Chang, W. G.; Li, X. Y.; Liu, Z. H. (Společnost pro radioelektronické inženýrství, 2015-12)
    This paper presents an efficient parallel processing architecture using multi-core Digital Signal Processor (DSP) to improve the capability of real-time imaging for Frequency Modulated Continuous Wave Synthetic Aperture ...
  • Video Tracking for Visual Degraded Aerial Vehicle with H-PMHT 

    Pakfiliz, A. G. (Společnost pro radioelektronické inženýrství, 2015-12)
    The work presented in this paper describes a novel approach for automatic video tracking of visual degraded air vehicles in daylight with sky background. The offered and applied video object tracking method is based on ...
  • Energy Efficient Power Allocation for Distributed Antenna System over Shadowed Nakagami Fading Channel 

    Ying Wang; Xiangbin Yu; Yang Li; Binbin Wu (Společnost pro radioelektronické inženýrství, 2015-12)
    In this paper, the energy efficiency (EE) of downlink distributed antenna system (DAS) with multiple receive antennas is investigated over composite fading channel that takes the path loss, shadow fading and Nakagami-m ...
  • Cross-Layer Combining of Adaptive Modulation and Truncated ARQ in Multichannel Beamforming MIMO Systems 

    Ivanis, P.; Drajic, D.; Brkic, S. (Společnost pro radioelektronické inženýrství, 2015-12)
    In this study the authors provide a cross-layer design of multiple-input-multiple-output (MIMO) systems, with the aim to maximize spectral efficiency. We consider MIMO systems based on a multichannel beamforming technique ...
  • Analysis of Coexistence of DRM Plus and FM Broadcasting Systems 

    Ulovec, K. (Společnost pro radioelektronické inženýrství, 2015-12)
    This paper deals with DRM (Digital Radio Mondiale) Plus and FM (Frequency Modulation) radio broadcasting systems coexistence. It brings results based on measurement of mutual interferences of each to other. Minimal necessary ...
  • Cascade Structure of Digital Predistorter for Power Amplifier Linearization 

    Solovyeva, E. B. (Společnost pro radioelektronické inženýrství, 2015-12)
    In this paper, a cascade structure of nonlinear digital predistorter (DPD) synthesized by the direct learning adaptive algorithm is represented. DPD is used for linearization of power amplifier (PA) characteristic, namely ...
  • Generalized Propagation Channel Model for 2GHz Low Elevation Links Using a Ray-tracing Method 

    Zeleny, J.; Perez-Fontan, F.; Pechač, Pavel (Společnost pro radioelektronické inženýrství, 2015-12)
    Unmanned Aerial Vehicles (UAV) will increasingly be used for responding to emergencies or for law enforcement in civil surveillance applications. Transferring the enormous amounts of information from UAV-mounted cameras ...
  • Quasi-Coherent Noise Jamming to LFM Radar Based on Pseudo-random Sequence Phase-modulation 

    Tai, N.; Pan, Y. J.; Yuan, N. C. (Společnost pro radioelektronické inženýrství, 2015-12)
    A novel quasi-coherent noise jamming method is proposed against linear frequency modulation (LFM) signal and pulse compression radar. Based on the structure of digital radio frequency memory (DRFM), the jamming signal is ...
  • Pascal-Interpolation-Based Noninteger Delay Filter and Low-Complexity Realization 

    Soontornwong, P.; Chivapreecha, S. (Společnost pro radioelektronické inženýrství, 2015-12)
    This paper proposes a new method for designing the polynomial-interpolation-type noninteger-delay filter with a new structure formulation. Since the design formulation and the new realization structure are based on the ...
  • Research of the Defects in Anesthetic Masks 

    Laucka, A.; Andriukaitis, D. (Společnost pro radioelektronické inženýrství, 2015-12)
    The article concerns the computer-assisted vision system created for the detection of the disposable anesthetic respiratory masks. This article provides the classification of defects which may be common to both rubber and ...
  • A Robust Color Image Watermarking Scheme Using Entropy and QR Decomposition 

    Laur, L.; Rasti, P.; Agoyi, M.; Anbarjafari, G. (Společnost pro radioelektronické inženýrství, 2015-12)
    Internet has affected our everyday life drastically. Expansive volumes of information are exchanged over the Internet consistently which causes numerous security concerns. Issues like content identification, document and ...
  • High Voltage Coil Current Sensor for DC-DC Converters Employing DDCC 

    Drinovsky, M.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2015-12)
    Current sensor is an integral part of every switching converter. It is used for over-current protection, regulation and in case of multiphase converters for balancing. A new high voltage current sensor for coil-based current ...
  • Electronically Tunable Current-mode High-order Ladder Low-pass Filters Based on CMOS Technology 

    Kunto, T.; Prommee, P.; Abuelma'atti, M. T. (Společnost pro radioelektronické inženýrství, 2015-12)
    This paper describes the design of current mode low-pass ladder filters based on CMOS technology. The filters are derived from passive RLC ladder filter prototypes using new CMOS lossy and lossless integrators. The all-pole ...
  • Envelope Factorization with Partial Elimination and Recombination, EF-PER, a New Linear RF Architecture 

    Diet, A.; Baudoin, G.; Lasaulce, S. (Společnost pro radioelektronické inženýrství, 2015-12)
    In this paper, a new architecture for efficient linear radio frequency transmitters is proposed; it includes envelope-tracking (ET) and envelope-elimination-and-restoration (EER) architectures as special instances. The ...
  • Power Dissipation of Memristor-Based Relaxation Oscillators 

    Fouda, M. E.; Radwan, A. G. (Společnost pro radioelektronické inženýrství, 2015-12)
    Recently, many reactance-less memristive relaxation oscillators were introduced, where the charging and discharging processes depend on memristors. In this paper, we investigate the power dissipation in different memristor ...
  • Space-Time-Frequency Diversity for OFDM-Based Indoor Power Line Communication 

    Hacioglu, G. (Společnost pro radioelektronické inženýrství, 2015-12)
    In this paper, full rate space-time-frequency coding applied to orthogonal frequency division multiplexing based power line communication systems. The proposed systems yield both time and frequency diversity and keep ...
  • Efficient Resource Allocation and Sectorization for Fractional Frequency Reuse (FFR) in LTE Femtocell Systems 

    Kawser, M. T.; Islam, M. R.; Ahmed, K. I.; Karim, M. R.; Saif, J. B. (Společnost pro radioelektronické inženýrství, 2015-12)
    The Fractional Frequency Reuse (FFR) is a resource allocation technique that can effectively mitigate inter-cell interference (ICI) in LTE based HetNets and it is a promising solution. Various FFR schemes have been suggested ...
  • A Novel Diversity Receiver Structure for Severe Fading and Frequency Offset Conditions 

    Dimitrijevic, B.; Krstic, V.; Nikolic, B. (Společnost pro radioelektronické inženýrství, 2015-12)
    This paper presents a novel diversity receiver of MPSK signal in fading channel in the presence of the carrier frequency offset. As a part of this receiver, a new algorithm for the estimation of the combining coefficients ...
  • Interference Suppression Performance of Automotive UWB Radars Using Pseudo Random Sequences 

    Pasya, I.; Kato, H.; Kobayashi, T. (Společnost pro radioelektronické inženýrství, 2015-12)
    Ultra wideband (UWB) automotive radars have attracted attention from the viewpoint of reducing traffic accidents. The performance of automotive radars may be degraded by interference from nearby radars using the same ...
  • Comments on Pinched Hysteresis Loops of Memristive Elements 

    Biolek, Zdeněk; Biolek, Dalibor; Biolková, Viera; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 2015-12)
    The hysteresis loops pinched in the v-i origin belong to well-known fingerprints of memristive elements driven by bipolar periodical signals. Some element properties follow from the loop behavior in the close neighborhood ...

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