Browsing 2014/4 by Issue Date

Now showing items 21-33 of 33

  • Digital Demodulator for BFSK waveform based upon Correlator and Differentiator Systems 

    Torres, Jorge; Hernandez, Fidel; Habermann, Joachim (Společnost pro radioelektronické inženýrství, 2014-12)
    The present article relates in general to digital demodulation of Binary Frequency Shift Keying (BFSK waveform) . New processing methods for demodulating the BFSK-signals are proposed here. Based on Sampler Correlator, the ...

  • Performance Analysis of a Dual-Hop Cooperative Relay Network with Co-Channel Interference 

    Lin, Min; Wei, Heng; Ouyang, Jian; An, Kang; Yuan, Can (Společnost pro radioelektronické inženýrství, 2014-12)
    This paper analyzes the performance of a dual-hop amplify-and-forward (AF) cooperative relay network in the presence of direct link between the source and destination and multiple co-channel interferences (CCIs) at the ...

  • An Offset Cancelation Technique for Latch Type Sense Amplifiers 

    Souliotis, George; Laoudias, Costas; Terzopoulos, Nikolaos (Společnost pro radioelektronické inženýrství, 2014-12)
    An offset compensation technique for a latch type sense amplifier is proposed in this paper. The proposed scheme is based on the recalibration of the charging/discharging current of the critical nodes which are affected ...

  • Concentrated Ground Plane Booster Antenna Technology for Multiband Operation in Handset Devices 

    Picher, Cristina; Anguera, Jaume; Andujar, Aurora; Puente, Carles; Bujalance, Adrian (Společnost pro radioelektronické inženýrství, 2014-12)
    The current demand in the handset antenna field requires multiband antennas due to the existence of multiple communication standards and the emergence of new ones. At the same time, antennas with reduced dimensions are ...

  • A Novel Stealthy Target Detection Based on Stratospheric Balloon-borne Positional Instability due to Random Wind 

    Barbary, Mohamed A.; Zong, Peng (Společnost pro radioelektronické inženýrství, 2014-12)
    A novel detection for stealthy target model F-117A with a higher aspect vision is introduced by using Stratospheric Balloon-borne Bistatic system. The potential problem of proposed scheme is platform instability impacted ...

  • Universal Image Steganalytic Method 

    Banoci, Vladimir; Broda, Martin; Bugar, Gabriel; Levicky, Dugan (Společnost pro radioelektronické inženýrství, 2014-12)
    In the paper we introduce a new universal steganalytic method in JPEG file format that is detecting well-known and also newly developed steganographic methods. The steganalytic model is trained by MHF-DZ steganographic ...

  • Parallel Implementation of the Discrete Green's Function Formulation of the FDTD Method on a Multicore Central Processing Unit 

    Stefanski, Tomasz; Orlowski, Slawomir; Reichel, Bartosz (Společnost pro radioelektronické inženýrství, 2014-12)
    Parallel implementation of the discrete Green's function formulation of the finite-difference time-domain (DGF-FDTD) method was developed on a multicore central processing unit. DGF-FDTD avoids computations of the ...

  • Equivalent Circuit Modeling of the Dielectric Loaded Microwave Biosensor 

    Jilani, Muhammad Taha; Wen, Wong Peng; Cheong, Lee Yen; Zakariya, Mohd Azman; Rehman, Muhammad Zaka Ur (Společnost pro radioelektronické inženýrství, 2014-12)
    This article describes the modeling of biological tissues at microwave frequency using equivalent lumped elements. A microwave biosensor based on microstrip ring resonator (MRR), that has been utilized previously for meat ...

  • Invariance of the Null Distribution of the Multiple Coherence 

    Bortel, Radoslav; Sovka, Pavel (Společnost pro radioelektronické inženýrství, 2014-12)
    In this paper we investigate the invariance of the null distribution of the multiple coherence (MC) to the statistics of the examined signals. We show that when the MC is computed between a group of signals x_i[n], i=1,...,K ...

  • Polarization Beam Splitter Based on Self-Collimation of a Hybrid Photonic Crystal 

    Bagci, Fulya; Can, Sultan; Akaoglu, Baris; Yilmaz, A. Egemen (Společnost pro radioelektronické inženýrství, 2014-12)
    A photonic crystal polarization beam splitter based on photonic band gap and self-collimation effects is designed for optical communication wavelengths. The photonic crystal structure consists of a polarization-insensitive ...

  • Efficient Raw Signal Generation Based on Equivalent Scatterer and Subaperture Processing for SAR with Arbitrary Motion 

    Xie, Hongtu; An, Daoxiang; Huang, Xiaotao; Zhou, Zhimin (Společnost pro radioelektronické inženýrství, 2014-12)
    An efficient SAR raw signal generation method based on equivalent scatterer and subaperture processing is proposed in this paper. It considers the radar’s motion track, which can obtain the precise raw signal for the real ...

  • Fully CMOS Memristor Based Chaotic Circuit 

    Yener, Suayb Cagri; Kuntman, H. Hakan (Společnost pro radioelektronické inženýrství, 2014-12)
    This paper demonstrates the design of a fully CMOS chaotic circuit consisting of only DDCC based memristor and inductance simulator. Our design is composed of these active blocks using CMOS 0.18 µm process technology with ...

  • Design of Dual-Band Two-Branch-Line Couplers with Arbitrary Coupling Coefficients in Bands 

    Prudyus, Ivan; Oborzhytskyy, Valeriy (Společnost pro radioelektronické inženýrství, 2014-12)
    A new approach to design dual-band two-branch couplers with arbitrary coupling coefficients at two operating frequency bands is proposed in this article. The method is based on the usage of equivalent subcircuits input ...