Results 91 to 100 of about 89,034 (232)
Mokslas: Lietuvos Ateitis, 2014 In this paper, two LC Voltage-Controlled Oscillators (LC-LC-VCO1 and LC-VCO2) are designed using TSMC 65 nm LP/MS/RF CMOS technology. Two arrays, one of which is a 6-bit capacitor array and the other – an array of MOS varactors, provide a wide LC-VCO ...
Vytautas Mačaitis, Vaidotas Barzdėnas
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Joint Transmit and Receive Filter Optimization for Sub-Nyquist Delay-Doppler Estimation
, 2018 In this article, a framework is presented for the joint optimization of the analog transmit and receive filter with respect to a parameter estimation problem. At the receiver, conventional signal processing systems restrict the two-sided bandwidth of the
Lenz, Andreas +2 more
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NMR in Biomedicine, Volume 39, Issue 6, June 2026.Acute and chronic inflammatory area in mouse myocardium can be associated with increased CW‐T1ρ and T2 after intramyocardial adenoviral injection. Inflammation reaction can be followed up with these endogenous relaxation time constant biomarkers. ABSTRACT Cardiac magnetic resonance imaging (MRI) is a gold standard to assess functional and anatomical ...
Elias Ylä‐Herttuala +8 more
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IEEE Access, 2019 In this paper, the development of a millimeter-wave hybrid beamforming (HBF) transceiver system for 5G millimeter-wave multiple-input-multiple-output (MIMO) communication is presented.
Ruoqiao Zhang +4 more
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Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.Abstract Conventional numerical methods for computing three‐dimensional (3D) airborne transient electromagnetic (ATEM) forward modeling suffer from low computational efficiency and high computational cost. Although deep learning techniques have achieved some progress in accelerating low‐dimensional ATEM forward modeling, high‐accuracy and efficient 3D ...
Xuben Wang +4 more
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Mokslas: Lietuvos Ateitis, 2018 Integrated circuit fabrication technological processes affect error of transceiver’s components, thus aims to minimize such deviation. This paper analyzes modern wireless transceiver calibration methods: feedforward, feedback, hybrid and indirect.
Leonid Kladovščikov +1 more
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Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems
International Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam +2 more
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Technique to estimate human reaction time based on visual perception
Healthcare Technology Letters, 2017 The design and implementation of a wearable system to estimate the human reaction time (HRT) to visual stimulus based on two identical wireless motion sensors are described.
Reza Abbasi-Kesbi +2 more
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Wi-Fi Teeter-Totter: Overclocking OFDM for Internet of Things
, 2018 The conventional high-speed Wi-Fi has recently become a contender for low-power Internet-of-Things (IoT) communications. OFDM continues its adoption in the new IoT Wi-Fi standard due to its spectrum efficiency that can support the demand of massive IoT ...
He, Shiyue +4 more
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Metasurfaces and Metadevices for Topological Electromagnetic Waves
Advanced Physics Research, Volume 5, Issue 5, May 2026.Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie +3 more
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