Now showing items 1-20 of 64

  • Design and Validation of a Software Defined Radio Testbed for DVB-T Transmission 

    Baruffa, G.; Rugini, L.; Banelli, P. (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper describes the design and validation of a Software Defined Radio (SDR) testbed, which can be used for Digital Television transmission using the Digital Video Broadcasting - Terrestrial (DVB-T) standard. In order ...
  • Mobile Communication Networks and Digital Television Broadcasting Systems in the Same Frequency Bands – Advanced Co-Existence Scenarios 

    Polak, L.; Kaller, O.; Klozar, L.; Sebesta, J.; Kratochvil, T. (Společnost pro radioelektronické inženýrství, 2014-04)
    The increasing demand for wireless multimedia services provided by modern communication systems with stable services is a key feature of advanced markets. On the other hand, these systems can many times operate in a ...
  • Analysis of Topological Impact on Wireless Channel Performance on Intelligent Street Lighting System 

    Azpilicueta, L.; Falcone, F.; Astrain, J.J.; Villadangos, J.; Chertudi, A.; Angulo, I.; Perallos, A.; Elejoste, P.; Garcia Zuazola, I. J. (Společnost pro radioelektronické inženýrství, 2014-04)
    In this work, an analysis of the physical radio channel propagation for the deployment of a wireless sensor network for intelligent street lighting is presented based on an in house implemented 3D ray launching code. ...
  • Analysis of Collaborative Beamforming for Wireless Sensor Networks with Phase Offset 

    Shen, X.; Huang, J.; Liu, P.; Pan, Y.; Xu, B.; Rao, Z. (Společnost pro radioelektronické inženýrství, 2014-04)
    Collaborative beamforming has been widely used in wireless sensor networks to improve the directivity of signals in long-distance transmission. The performance of collaborative beamforming has been well analyzed for the ...
  • A Matlab-Based Tool for Video Quality Evaluation without Reference 

    Zach, O.; Slanina, M. (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper deals with the design of a Matlab based tool for measuring video quality with no use of a reference sequence. The main goals are described and the tool and its features are shown. The paper begins with a description ...
  • Filtenna Integration Achieving Ideal Chebyshev Return Losses 

    Hueltes, A.; Verdu, J.; Collado, C.; Mateu, J.; Rocas, E.; Valenzuela, J. L. (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper demonstrates that it is possible to find an ideal filter response (Chebyshew, Butterworth,..) considering the antenna as the last resonator of a filter under certain circumstances related with the antenna ...
  • Nonlinear Performance of BAW Filters Including BST Capacitors 

    Rocas, E.; Mateu, J.; Collado, C.; Hueltes, A.; Verdu, J.; Billard, C.; David, J.-B.; Reinhardt, A. (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper evaluates the nonlinear effects occurring in a bulk acoustic wave (BAW) filter which includes barium strontium titanate (BST) capacitors to cancel the electrostatic capacitance of the BAW resonators. To do that ...
  • Simplified Metrics Calculation for Soft Bit Detection in DVB-T2 

    Perez-Calderon, D.; Baena-Lecuyer, V.; Doblado, J. G.; Oria, A. C.; Lopez, P. (Společnost pro radioelektronické inženýrství, 2014-04)
    The constellation rotation and cyclic quadrature component delay (RQD) technique has been adopted in the second generation terrestrial digital video broadcasting (DVB-T2) standard. It improves the system performance under ...
  • Improved Energy Detector for Wideband Spectrum Sensing in Cognitive Radio Networks 

    Eghbali, Y.; Hassani, H.; Koohian, A.; Ahmadian-Attari, M. (Společnost pro radioelektronické inženýrství, 2014-04)
    In this paper, an improved energy detector for a wideband spectrum sensing is proposed. For a better detection of the spectrum holes the overall band is divided into equal non-overlapping sub-bands. The main objective is ...
  • Evaluation of Detection Performance under Employment of the Generalized Detector in Radar Sensor Systems 

    Shbat, M. S.; Tuzlukov, V. P. (Společnost pro radioelektronické inženýrství, 2014-04)
    The detection performance of the generalized detector (GD) constructed based on the generalized approach to signal processing in noise is evaluated under homogeneous and non-homogeneous noise. The GD adaptive threshold is ...
  • Utilization of OIM for Measurement Selection in Multistatic Target Tracking 

    Soysal, G.; Efe, M.; Streit, R. L. (Společnost pro radioelektronické inženýrství, 2014-04)
    The sensor management problem can be expressed as obtaining the state estimation with desired accuracy by utilizing the resources effectively. In the literature, there are two principal approaches to this problem, namely ...
  • Radar HRRP Modeling using Dynamic System for Radar Target Recognition 

    Ajorloo, A.; Hadavi, M.; Bastani, M. H.; Nayebi, M. M. (Společnost pro radioelektronické inženýrství, 2014-04)
    High resolution range profile (HRRP) is being known as one of the most powerful tools for radar target recognition. The main problem with range profile for radar target recognition is its sensitivity to aspect angle. To ...
  • Continuous Wavelet Transform and Hidden Markov Model Based Target Detection 

    Tuğaç, S.; Efe, M. (Společnost pro radioelektronické inženýrství, 2014-04)
    Standard tracking filters perform target detection process by comparing the sensor output signal with a predefined threshold. However, selecting the detection threshold is of great importance and a wrongly selected threshold ...
  • Detection-Discrimination Method for Multiple Repeater False Targets Based on Radar Polarization Echoes 

    ZONG, Z. W.; SHI, L. F.; LI, Y. Z.; WANG, X. S. (Společnost pro radioelektronické inženýrství, 2014-04)
    Multiple repeat false targets (RFTs), created by the digital radio frequency memory (DRFM) system of jammer, are widely used in practical to effectively exhaust the limited tracking and discrimination resource of defence ...
  • An Adaptive Clutter Suppression Technique for Moving Target Detector in Pulse Doppler Radar 

    Mandal, A.; Mishra, R. (Společnost pro radioelektronické inženýrství, 2014-04)
    An adaptive system performs the processing by using an architecture having time-varying parameters on the received signals which accompanies with clutters. In this paper, an adaptive moving target detector has been designed ...
  • An FPGA Based Implementation of a CFAR Processor Applied to a Pulse-Compression Radar System 

    Simić, S.; Andrić, M.; Zrnić, B. (Společnost pro radioelektronické inženýrství, 2014-04)
    A hardware architecture that implements a CFAR processor including six variants of the CFAR algorithm based on linear and nonlinear operations for radar applications is presented. Since some implemented CFAR algorithms ...
  • Diversity-Based Geometry Optimization in MIMO Passive Coherent Location 

    Radmard, M.; Nayebi, M. M.; Karbasi, S. M. (Společnost pro radioelektronické inženýrství, 2014-04)
    Applying the recently emerged technique‎, ‎MIMO (Multiple Input Multiple Output) to PCL (Passive Coherent‎ ‎Location) is expected to improve performance of localization schemes‎. ‎In this paper‎, ‎we explore the‎ ‎application ...
  • False Alarm Analysis of the CATM-CFAR in Presence of Clutter Edge 

    Ivković, D.; Andrić, M.; Zrnić, B. (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper presents a false alarm analysis of the cell-averaging-trimmed-mean constant false alarm rate (CATM-CFAR) detector in the presence of clutter edge. Structure of the CATM-CFAR detector is described briefly. Detection ...
  • Low-Voltage High-Linearity Wideband Current Differencing Transconductance Amplifier and Its Application on Current-Mode Active Filter 

    Xu, J.; Wang, C.; Jin, J.; Xia, Z. (Společnost pro radioelektronické inženýrství, 2014-04)
    A low-voltage high-linearity wideband current differencing transconductance amplifier (CDTA) is presented in this paper. The CDTA consists of a current differencing circuit and a cross-coupling transconductance circuit. The ...
  • Effect and Compensation of Timing Jitter in Through-Wall Human Indication via Impulse Through-Wall Radar 

    Zhu, G.; Hu, J.; Jin, T.; Zhou, Z. (Společnost pro radioelektronické inženýrství, 2014-04)
    Impulse through-wall radar (TWR) is considered as one of preferred choices for through-wall human indication due to its good penetration and high range resolution. Large bandwidth available for impulse TWR results in high ...