Results 21 to 30 of about 1,850,698 (295)
A Reduced Complexity Tensor Approach for Order Selection and Frequency Estimation
IEEE Access, 2021 This paper presents a reduced complexity tensor approach for order selection and subspace-based frequency estimation. The proposed covariance tensor based order selection algorithm, termed as CT-OS, uses singular values of the covariance tensor formed ...
Runyi Yu, Erhan A. Ince
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IEEE Open Journal of the Industrial Electronics Society, 2020 A unified method is presented which allows to estimate dc-offset, all harmonic components and fundamental frequency in arbitrarily distorted single-phase grids using a Frequency Adaptive Observer (FAO) consisting of modified Second-Order Generalized ...
Christoph Hackl, Markus Landerer
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Actuators, 2021 An online algebraic estimation technique for natural and forcing frequencies for a class of uncertain and lumped-parameter vibrating mechanical systems with n degrees of freedom is described.
Gerardo Silva-Navarro +4 more
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Time-frequency represetation of radar signals using Doppler-Lag block searching Wigner-Ville distribution [PDF]
, 2018 Radar signals are time-varying signals where the signal parameters change over time. For these signals, Quadratic Time-Frequency Distribution (QTFD) offers advantages over classical spectrum estimation in terms of frequency and time resolution but it ...
Hamdi, Muhammad Noor Muhammad +1 more
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Measurement Science Review, 2017 The convergence rate and the continuous tracking precision are two main problems of the existing adaptive notch filter (ANF) for frequency tracking. To solve the problems, the frequency is detected by interpolation FFT at first, which aims to overcome ...
Shen Ting-ao +3 more
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Frequency Estimation for Grid-Tied Inverters Using Resonant Frequency Estimator
Energies, 2021 This paper introduces a new strategy of frequency estimation for grid-tied and stand-alone mode AC/DC power converters. Frequency stabilization is required, especially when operating in stand-alone mode with a Droop Control strategy, or in hybrid mode with a Diesel generator.
Dariusz Zieliński, Karol Fatyga
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A low complexity SI sequence estimator for pilot-aided SLM–OFDM systems [PDF]
, 2016 Selected mapping (SLM) is a well-known method for reducing peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems.
Adegbite, Saheed A. +2 more
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Method of estimation of frequency variation relying on estimation of shift of spectral peaks
Системный анализ и прикладная информатика, 2021 Problem of estimation of variated frequency of components of polyharmonic signals has been arose. Three-dimensional time-frequency representation of signals is usually used to resolve this problem.
D. A. Kechik +2 more
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Performance evaluation of channel estimation techniques for a proposed '4G' MC-CDMA based system in a time varying channel [PDF]
, 2004 This paper investigates the performance of channel estimation techniques applied to a proposed fourth generation (4G) multi carrier - code division multiple access (MC-CDMA) system.
Armour, SMD +3 more
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Frontiers in Psychology, 2018 Humans' judgment of relative-frequency, similar to their use of probability in decision-making, is often distorted as an inverted-S-shape curve—small relative-frequency overestimated and large relative-frequency underestimated.
Xiangjuan Ren +5 more
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