Now showing items 1-20 of 23

  • Implementation of a 3-layer LDM Broadcast Systém Backward-compatible with ISDB-TB 

    Rabaça, R. S.; Jerji, F.; Akamine, C. (Společnost pro radioelektronické inženýrství, 2021-06)
    This paper presents an implementation of a 3-layer transmitter and receiver using Layer Division Multiplexing (LDM), in Software Defined Radio (SDR). The main idea of this work is to show another point of view of the ...
  • Parametric Geometrical Study of OOO-Microstrip Circuit with Dual-Band Bandpass NGD Behavior 

    Yang, R.; Wan, F.; Nebhen, J.; Lallechere, S.; Ravelo, B. (Společnost pro radioelektronické inženýrství, 2021-06)
    This paper introduces a bandpass (BP) NGD circuit design engineering. The developed circuit is de¬signed and implemented using distributed microstrip tech-nology and operates with outstanding dual-band bandpass NGD performance ...
  • CipherCAD Testbed 

    Platenka, V.; Mazalek, A. (Společnost pro radioelektronické inženýrství, 2021-06)
    The CipherCAD testbed is a unique workplace for the development, design, testing, verification and teaching of the communications systems. CipherCAD is at the core of the workplace, which is an application primarily designed ...
  • Compact Wideband SIW Based Bandpass Filter for X, Ku and K Band Applications 

    Duraisamy, T.; Kamakshy, S.; Karthikeyan, S. S.; Barik, R. K.; Cheng, Q. S. (Společnost pro radioelektronické inženýrství, 2021-06)
    This paper presents a miniaturized bandpass filter (BPF) with characteristics of wider passband and stopband rejection using substrate integrated waveguide (SIW) technology. Slot loading mechanisms deployed on the upper ...
  • DWT-DCT-Based Data Hiding for Speech Bandwidth Extension 

    Koduri, S. K.; Kumar, T. K. (Společnost pro radioelektronické inženýrství, 2021-06)
    The limited narrowband frequency range, about 300-3400Hz, used in telephone network channels results in less intelligible and poor-quality telephony speech. To address this drawback, a novel robust speech bandwidth extension ...
  • Non-Uniform Constellations for Polarization Division Multiplexed CO-OFDM Systems 

    Perez-Calderon, D.; Baena Lecuyer, V.; Oria Oria, A. C.; Garcia Doblado, J. (Společnost pro radioelektronické inženýrství, 2021-06)
    In this paper we propose a transmission scheme for Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) systems with Multiple Input - Multiple Output (MIMO) processing. Our proposal consists of the ...
  • CPW Fed Koch Modified Fractal Antenna Backed with Partial Ground for Multiband Wireless Applications 

    Dash, R. K.; Saha, P. B.; Ghoshal, D.; Palai, G. (Společnost pro radioelektronické inženýrství, 2021-06)
    In this article, modified Koch fractal geometry-based patch antenna up to second iteration is implemented with partial ground configuration to achieve multiband response with wideband behavior at each of the resonating ...
  • Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter 

    Das, T. K.; Chatterjee, S. (Společnost pro radioelektronické inženýrství, 2021-06)
    This article exhibits the design of a fourth-order compact hairpin-line filter centered at 2.5 GHz and 3 dB fractional bandwidth of 5% along with a sharp roll-off factor and wide stopband characteristics required for ...
  • Amplitude-modulated, Cosine PE and WP Pulses: Theory and Applicability 

    Lager, I. E.; Stumpf, M. (Společnost pro radioelektronické inženýrství, 2021-06)
    The amplitude-modulated, cosine power-exponential (PE) and windowed-power (WP) pulses are discussed, by insisting on their time-domain normalization. Illustrative examples of signatures and their correspondent frequency-domain ...
  • Efficient Dark Channel Prior Based Blind Image De-blurring 

    Ahmad, J.; Touqir, I.; Siddiqui, A. M. (Společnost pro radioelektronické inženýrství, 2021-06)
    Dark channel prior for blind image de-blurring has attained considerable attention in recent past. An interesting observation in blurring process is that the value of dark channel increases after averaging with adjacent ...
  • Study on the Composite Electromagnetic Scattering from 3D Conductor Multi-Objects above the Rough Surface 

    Liu, T.; Zhang, L.; Zeng, Z. G.; Wei, S. J. (Společnost pro radioelektronické inženýrství, 2021-06)
    The traditional algorithm for the composite electromagnetic scattering from 3D conductor multi-objects above the rough surface has such weaknesses as slow computation speed and large memory consumption. On the basis of the ...
  • Design of Ultra-wideband Low RCS Reflecting Screen Based on Phase Gradient Metasurface 

    Ji, K. F.; Gao, J.; Cao, X.; Han, J.; Yang, H. (Společnost pro radioelektronické inženýrství, 2021-06)
    In order to realize full phase coverage of 360° and abnormal reflection of incident wave, one kind of metasurface unit-cell with double diagonal opening cross petal and two types of one and two dimensional phase gradient ...
  • A Wideband Conductor Backed Coplanar Waveguide Fed Implantable Antenna Operable in Different Tissues for Biotelemetry Applications 

    Okan, T. (Společnost pro radioelektronické inženýrství, 2021-06)
    A wideband biocompatible implanted antenna is designed for wireless biotelemetry applications at industrial, scientific and medical (ISM) band (2.4-2.48 GHz). The antenna is fed by a conductor backed coplanar waveguide ...
  • A Nonlinear Concurrent Butterfly Equalizer 

    Mayer,K. S.; Soares, J. A.; Arantes, D. S. (Společnost pro radioelektronické inženýrství, 2021-06)
    Optical communication systems operating with high data rates and dual-polarization are frequently disrupted by chromatic and polarization mode dispersions. Fixed filters usually mitigate chromatic dispersion; on the other ...
  • Modelling of a Polarization Insensitive UWB FSS with Band Stop Response 

    Bijimanzil Abdulkareem, S.; Gopalakrishnan, S. (Společnost pro radioelektronické inženýrství, 2021-06)
    This paper presents a compact ultra-wideband frequency selective surface (FSS) with band stop response. The proposed single layer FSS is printed on FR-4 substrate with a unit cell periodicity of 0.138λ_0 × 0.138λ_0, ...
  • Multi-Resonant Class-F Power Amplifier Design for 5G Cellular Networks 

    Sajedin, M.; Elfergani, I.; Rodriguez, J.; Violas, M.; Asharaa, A.; Abd-Alhameed, R.; Fernandez-Barciela, M.; Abdulkhaleq, A. M. (Společnost pro radioelektronické inženýrství, 2021-06)
    This work integrates a harmonic tuning mechanism in synergy with the GaN HEMT transistor for 5G mobile transceiver applications. Following a theoretical study on the operational behavior of the Class-F power amplifier (PA), ...
  • Design of Matched and Mismatched Filters Based on Peak Sidelobe Level Minimization 

    Pishrow, M. M.; Abouei, J.; Ghaferi, H. (Společnost pro radioelektronické inženýrství, 2021-06)
    ‎This paper focuses on the design of matched filters with low peak sidelobe level as well as mismatched‎ ‎filters with low loss in processing gain and peak sidelobe level‎, ‎for phase codes‎. ‎We propose an algorithm ‎which ...
  • Airborne FDA-MIMO Radar Modeling and Detection Performance Analysis 

    Yan, Y. S.; Wang, W. Q.; Basit, A.; Cai, J. Y. (Společnost pro radioelektronické inženýrství, 2021-06)
    In the conventional frequency diverse array (FDA) radar designs, generalized likelihood ratio test (GLRT) detection utilizes coherent pulses. However, the impacts of an FDA multiple-input multiple-output (FDA-MIMO) radar ...
  • An Embedded Implementation of Discrete Zolotarev Transform Using Hardware-Software Codesign 

    Kubak, J.; Stastny, J.; Sovka, P. (Společnost pro radioelektronické inženýrství, 2021-06)
    The Discrete Zolotarev Transform (DZT) brings an improvement in the field of spectral analysis of non-stationary signals. However, the transformation algorithm called Approximated Discrete Zolotarev Transform (ADZT) suffers ...
  • A Measurement Set Partitioning Algorithm Based on CFSFDP for Multiple Extended Target Tracking in PHD Filter 

    Gong, Y.; Cui, C. (Společnost pro radioelektronické inženýrství, 2021-06)
    The extended target probability hypothesis den¬sity (ET-PHD) filter is a promising approach for multiple extended target tracking. One crucial problem of the ET-PHD filter is partitioning the measurement set. This paper ...