2022/4
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Direct Coupled Wave Removal for GPR Data Based on SVD in the Wavelet Domain
(Společnost pro radioelektronické inženýrství, 2022-12)This paper presents a new algorithm of the singular value decomposition (SVD) in the wavelet domain for ground penetrating radar (GPR) to remove direct coupled waves. In fact, direct coupled waves commonly disturb the ... -
Design of Nonuniformly Spaced Antenna Arrays Using Orthogonal Coefficients Equating Method
(Společnost pro radioelektronické inženýrství, 2022-12)Orthogonal Coefficients Equating (OCE) method as an analytic method is proposed to synthesize nonuniformly spaced antenna arrays to have array factors nearly equal to that of a previously designed uniformly spaced antenna ... -
Simultaneous Wireless Transmission Based on Visible LED of On-Off-Keying and Discrete Multitone Signal Using Sparse Compressive Sampling and Derivative-Subtractive Sampling
(Společnost pro radioelektronické inženýrství, 2022-12)We propose a technique for simultaneously transmitting two signals with different waveforms (non-return-to-zero on-off keying (NRZ-OOK) signal and discrete multi-tone (DMT) signal) in an optical wireless link based on ... -
Design of Dual-Mode Loop Resonator-Based Microwave Diplexers with Enhanced Performance
(Společnost pro radioelektronické inženýrství, 2022-12)In this paper, a dual-mode loop resonator based circuit topology is studied for microwave diplexer applications. Several diplexers, with dense and sparse channel separations, are further discussed based on the introduced ... -
Design of Bifurcated Beam using Convex Bent Array Feed for Satellite Mobile Earth Station Application
(Společnost pro radioelektronické inženýrství, 2022-12)For multibeam operation at the satellite mobile earth station and telecommunication base stations, a cylindrical lens antenna with multi-feed is a promising candidate due to the simple antenna configuration and good scanning ... -
Uncooperative Emitter Localization Based on Joint Sensor Selection and Semidefinite Programming
(Společnost pro radioelektronické inženýrství, 2022-12)Radio emitter localization based on Received Signal Strength (RSS) is promising in large-scale Internet of Things (IoT) and wireless sensor networks (WSNs) for its low hardware and computation costs. To improve its ... -
Optical Ray Transfer Matrix Model of the Turbulent Cells Cascade
(Společnost pro radioelektronické inženýrství, 2022-12)The paper offers a new approach to modeling atmospheric turbulence consisting of turbulent cells whose size is larger than the optical beam width. Particular turbulent cells are approximated by an optical element matrix. ... -
Enhanced SIMO Radar System Based on Time-Frequency Correlation for Target Localization Applications
(Společnost pro radioelektronické inženýrství, 2022-12)This study developed a novel S-band radar system for planar location applications. High-resolution range imaging and target angle estimation were achieved by using a stepped frequency continuous wave (SFCW) signal and ... -
Tunable Balanced-to-Unbalanced In-Phase Power Divider: Theoretical Analysis and Design
(Společnost pro radioelektronické inženýrství, 2022-12)This paper presents a tunable power divider (PD) which is balanced at the input port and unbalanced at the output ports. This tunable balanced-to-unbalanced (TBU) PD divides the power either equally or in specific ratio ... -
Compact LTCC Balun using L-C Embraced Structure for 128 MHz 3T MRI Applications
(Společnost pro radioelektronické inženýrství, 2022-12)A compact lumped-element balun is proposed for 128 MHz frequency 3 Tesla (T) magnetic resonance imaging (MRI) applications. The miniaturization is achieved by the inductor-capacitor (L-C) embraced structure, which places ... -
Mode-S Radar Interrogation Algorithm Design for Dense Air Traffic Environment
(Společnost pro radioelektronické inženýrství, 2022-12)The increasing trend in air traffic density will continue in the near future with the addition of different aerial vehicles. Before the Mode-S protocol, Mode A and Mode C were in use; however, the Mode A/C configuration ... -
An Adaptive Sparse Constraint ISAR High Resolution Imaging Algorithm Based on Mixed Norm
(Společnost pro radioelektronické inženýrství, 2022-12)Based on the sparsity of inverse synthetic aperture radar (ISAR) signal, in this paper, a novel high resolution imaging algorithm is proposed. In this method, an optimal ISAR signal model based on mixed norm is established ... -
Distributed Reed-Solomon Coded Cooperative Space-Time Labeling Diversity Network
(Společnost pro radioelektronické inženýrství, 2022-12)This paper proposes a distributed Reed-Solomon coded cooperative labeling diversity (DRSCC-LD) scheme over the Rayleigh frequency-flat fast fading channel to further improve the BER performance. The non-binary Reed-Solomon ... -
Improved Phase Noise Compensation in OFDM Systems
(Společnost pro radioelektronické inženýrství, 2022-12)Phase noise (PN) consists of common phase error (CPE) and inter carrier interference (ICI). In an OFDM symbol, CPE has the same impact on each subcarrier, which is easy to be suppressed. However, ICI destroys the orthogonality ...
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