Results 11 to 20 of about 4,848,557 (288)
Frequency estimation by frequency jumps
The frequency of a quantum harmonic oscillator cannot be precisely determined through static measurement strategies on a prepared state. Therefore, dynamical procedures must be employed, involving measurements taken after the system has evolved and ...
Simone Cavazzoni +2 more
doaj +3 more sources
Modelling and extraction of fundamental frequency in speech signals [PDF]
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.One of the most important parameters of speech is the fundamental frequency of vibration of voiced sounds.
Pawi, Alipah
core +7 more sources
A Novel training-based MIMO channel estimation scheme for layered space-time systems in frequency selective wireless channels [PDF]
New development in wireless technology using multiple antennas with appropriate space-time processing has recently become the new frontier of wireless communication systems due to the potential for providing very high spectral efficiency and enormous ...
Siyau, Ming F.
core +7 more sources
Joint Channel, Carrier-Frequency-Offset and Noise-Variance Estimation for OFDM Systems Based on Expectation Maximization [PDF]
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 +2 more sources
Interpolated DFT Algorithm for Frequency Estimation by Using Maximum Sidelobe Decay Windows
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
A Method for Correcting Frequency Estimates for Synthetic Inertia Control
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
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
DFT-Based Frequency Estimation of Multiple Sinusoids
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
A Reduced Complexity Tensor Approach for Order Selection and Frequency Estimation
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
A convergent frequency estimator [PDF]
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

