Now showing items 1-20 of 64

  • ELM (Extreme Learning Machine) Based Correlated Interference Canceller for Small Aperture Array Antenna 

    Lim, Junseok; Pang, Heesuk; Hong, Wooyoung (Společnost pro radioelektronické inženýrství, 2014-04)
    The multipath effect creates a highly correlated interference. Subsequently, small aperture array antennas equipped in mobile devices must be able to effectively cancel this coherent interference. Spatial smoothing MMSE ...
  • Frequency Coded Chipless RFID Tag using Spurline Resonators 

    Sumi, M.; Dinesh, R.; Nijas, C. M.; Mridula, S.; Mohanan, P. (Společnost pro radioelektronické inženýrství, 2014-04)
    A novel compact chipless RFID tag using spurline resonators is discussed in this paper. The detection of the tag's ID is using the spectral signature of a spurline resonator circuit. The tag has a data capacity of 8-bits ...
  • Design and Validation of a Software Defined Radio Testbed for DVB-T Transmission 

    Baruffa, Giuseppe; Rugini, Luca; Banelli, Paolo (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 ...
  • Evaluation of Detection Performance under Employment of the Generalized Detector in Radar Sensor Systems 

    Shbat, Modar; Tuzlukov, Vyacheslav (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 ...
  • Unambiguous Tracking Method Based on Combined Correlation Functions for sine/cosine-BOC CBOC and AltBOC Modulated Signals 

    Ren, Jiawei; Yang, Guitong; Jia, Weimin; Ya, Minli (Společnost pro radioelektronické inženýrství, 2014-04)
    Unambiguous tracking for Binary Offset Carrier (BOC) modulated signals is an important requirement of modern Global Navigation Satellite System (GNSS) receivers. An unambiguous tracking method based on combined correlation ...
  • Channel Influence Mitigation in Pseudo-noise Waveform Design for Radar Applications 

    Kulpa, Janusz S. (Společnost pro radioelektronické inženýrství, 2014-04)
    Noise Radar is a rapidly developing technology which uses noise or pseudo-noise waveforms as sounding signals to de- tect targets of interest. The advantages of such waveforms are no range nor velocity ambiguities, the ...
  • Low-Voltage High-Linearity Wideband Current Differencing Transconductance Amplifier and Its Application on Current-Mode Active Filter 

    Xu, Jun; Wang, Chunhua; Jin, Jie; Xia, Zanming (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 ...
  • An Adaptive Clutter Suppression Technique for Moving Target Detector in Pulse Doppler Radar 

    Mandal, Amritakar; Mishra, Rajesh (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 ...
  • The Impact of User Effects on the Performance of Dual Receive Antenna Diversity Systems in Flat Rayleigh Fading Channels 

    Liu, Peng; Perovic, Nemanja Stefan; Springer, Andreas (Společnost pro radioelektronické inženýrství, 2014-04)
    In this paper we study the impact of user effects on the performance of receive antenna diversity systems in flat Rayleigh fading channels. Three diversity combining techniques are compared: maximal ratio combining (MRC), ...
  • Analysis of Collaborative Beamforming for Wireless Sensor Networks with Phase Offset 

    Xiaofeng, Shen; Jiyan, Huang; Peng, Liu; Pan, Yijiang; Xu, Baogen; Rao, Zhongchu (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 ...
  • Double-layer Perfect Metamaterial Absorber and Its Application for RCS Reduction of Antenna 

    Li, Sijia; Cao, Xiangyu; Liu, Tao; Yang, Huanhuan (Společnost pro radioelektronické inženýrství, 2014-04)
    To reduce the radar cross section (RCS) of a circularly polarized (CP) tilted beam antenna, a double-layer perfect metamaterial absorber (DLPMA) in the microwave frequency is proposed. The DLPMA exhibits a wider band by ...
  • Improved Energy Detector for Wideband Spectrum Sensing in Cognitive Radio Networks 

    Eghbali, Yasoub; Hassani, Hamid; Koohiav, Abbas; Ahmadian-Attari, Mahmoud (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 ...
  • Emitter Location Finding using Particle Swarm Optimization 

    Cakir, Oguzhan; Kaya, Ismail; Yazgan, Ayhan; Cakir, Omer; Tugcu, Emin (Společnost pro radioelektronické inženýrství, 2014-04)
    Using several spatially separated receivers, nowadays positioning techniques, which are implemented to determine the location of the transmitter, are often required for several important disciplines such as military, ...
  • Easy-to-Build Satellite Beacon Receiver for Propagation Experimentation at Millimeter Bands 

    Machado, Fernando; Vilar, Enric; Fontan, Fernando P.; Pastoriza, Vicente; Marino, Perfecto (Společnost pro radioelektronické inženýrství, 2014-04)
    This paper describes the design and development of a digital satellite beacon receiver for propagation experimentation. Satellite beacons are frequently available for pointing large antennas, but such signals can be used ...
  • Curved Track Analysis of FSO Link for Ground-to-Train Communications 

    Paudel, Rupak; Poliak, Juraj; Ghassemlooy, Zabih; Wilfert, Otakar; Leitgeb, Erich (Společnost pro radioelektronické inženýrství, 2014-04)
    In this work, a free space optical (FSO) link for the ground-to-train (G2T-FSO) communications is proposed. Analytical analysis is carried out for the curved rail tracks. We show that the transmitter divergence angle, the ...
  • Continuous Wavelet Transform and Hidden Markov Model Based Target Detection 

    Tugac, Serdar; Efe, Murat (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 ...
  • Overcoming Inter-Subject Variability in BCI Using EEG-Based Identification 

    Stastny, Jakub; Sovka, Pavel; Kostilek, Milan (Společnost pro radioelektronické inženýrství, 2014-04)
    The high dependency of the Brain Computer Interface (BCI) system performance on the BCI user is a well-known issue of many BCI devices. This contribution presents a new way to overcome this problem using a synergy between ...
  • Adaptive Multi-Rate Wavelet Method for Circuit Simulation 

    Bittner, Kai; Brachtendorf, Hans Georg (Společnost pro radioelektronické inženýrství, 2014-04)
    In this paper a new adaptive algorithm for multi-rate circuit simulation encountered in the design of RF circuits based on spline wavelets is presented. The ordinary circuit differential equations are first rewritten by a ...
  • Multi-Antenna OFDM System Using Coded Wavelet with Weighted Beamforming 

    Anoh, Kelvin O. O.; Asif, Rameez; Abd-Alhameed, Raed A.; Rodriguez, Jonathan; Noras, James M.; Jones, Steve M. R.; Hussaini, Abubakar S. (Společnost pro radioelektronické inženýrství, 2014-04)
    A major drawback in deploying beamforming scheme in orthogonal frequency division multiplexing (OFDM) is to obtain the optimal weights that are associated with information beams. Two beam weighting methods, namely co-phasing ...
  • Performance Analysis of PCFICH and PDCCH LTE Control Channels 

    Milos, Jiri; Hanus, Stanislav (Společnost pro radioelektronické inženýrství, 2014-04)
    Control channels play a key role in the evaluation of mobile system performance. The purpose of our paper is to evaluate the performance of the control channels implementation in the Long Term Evolution (LTE) system. The ...