Results 11 to 20 of about 540,085 (315)

Online Frequency Estimation on a Building-like Structure Using a Nonlinear Flexible Dynamic Vibration Absorber

open access: yesMathematics, 2022
The online frequency estimation of forced harmonic vibrations on a building-like structure, using a nonlinear flexible vibration absorber in a cantilever beam configuration, is addressed in this article.
Francisco Beltran-Carbajal   +5 more
doaj   +1 more source

A convergent frequency estimator [PDF]

open access: yesProceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000
Online identification of sinusoidal components is an important problem that occurs in active noise control, vibration suppression, online health monitoring, and radar, sonar, and seismic applications. We adopt an approach to this identification problem which consists of the utilization of the underlying nonlinearity and an algorithm that is based on ...
Anuradha M. Annaswamy   +3 more
openaire   +1 more source

A Method for Correcting Frequency Estimates for Synthetic Inertia Control

open access: yesIEEE Access, 2020
This paper presents three frequency estimation algorithms, one based on extended Kalman filtering, another on quadrature phase-locked loop and an adaptive notch filter.
Felipe Wilches-Bernal   +2 more
doaj   +1 more source

Generalized frequency estimator with rational combination of three spectrum lines

open access: yesIET Radar, Sonar & Navigation, 2022
The popular Discrete Fourier Transform (DFT) is known to be a sub‐optimal frequency estimation technique for a finite transform length. In order to approach the Cramer‐Rao Lower Bound (CRLB), many refinement techniques have been considered, but little ...
Benjamin Gigleux   +2 more
doaj   +1 more source

AN APPROACH FOR SINGLE-TONE FREQUENCY ESTIMATION USING DFT INTERPOLATION WITH PARZEN WINDOWING

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2023
In many applications, including radar, radio and television, medical, industrial, and others, frequency estimate of a periodic sinusoidal signal is a crucial step in the signal processing process.
Mohammed A. T. Alrubei   +1 more
doaj   +1 more source

Sequential Estimation of Frequency and Direction-of-Arrival Based on the Relaxed Coprime Array for Multiple Targets

open access: yesIEEE Access, 2020
Recently, extensive researches focus on the joint estimation of carrier frequency and direction-of-arrival, whereas the heavy computation burden and affordable hardware cost are always required therein.
Xiangdong Huang, Lu Cao, Anan Liu
doaj   +1 more source

Interpolated DFT Algorithm for Frequency Estimation by Using Maximum Sidelobe Decay Windows

open access: yesIEEE Access, 2022
A sinusoidal frequency estimator based on interpolated Discrete Fourier Transform (DFT) algorithm by using Maximum Sidelobe Decay (MSD) windows is proposed in this paper. Firstly, the received sinusoid is weighted by an appropriate MSD window.
Huihao Wu   +5 more
doaj   +1 more source

DFT-Based Frequency Estimation of Multiple Sinusoids

open access: yesIEEE Access, 2022
An accurate frequency estimation method of multi-component sinusoidal signal in additive white Gaussian noise (AWGN) is proposed. The algorithm is implemented in the frequency domain and based on discrete Fourier transform (DFT). The maximum DFT spectral
Nian Liu   +5 more
doaj   +1 more source

Joint Channel, Carrier-Frequency-Offset and Noise-Variance Estimation for OFDM Systems Based on Expectation Maximization [PDF]

open access: yes, 2010
In this paper, a joint channel, carrier-frequency-offset (CFO) and noise-variance estimation scheme is proposed for OFDM systems which is based on Expectation and Maximization (EM) algorithm.
Xiaomin Mu   +5 more
core   +1 more source

A Reduced Complexity Tensor Approach for Order Selection and Frequency Estimation

open access: yesIEEE 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
doaj   +1 more source

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