نتایج جستجو برای: harmonic components

تعداد نتایج: 434371  

Journal: :Journal of experimental psychology. Human perception and performance 2003
Emmanuel Bigand Bénédicte Poulin Barbara Tillmann François Madurell Daniel A D'Adamo

This study investigated the strength of sensory and cognitive components involved in musical priming. In Experiment 1, the harmonic function of the target chord and the number of pitch classes shared by the prime sequence and the target chord were manipulated. In Experiment 2, the temporal course of sensory and cognitive priming was investigated. For both musician and nonmusician listeners, cog...

2013
Ricardo A. S. Fernandes Ricardo A. L. Rabêlo Ivan Nunes da Silva Mário Oleskovicz

This paper presents a method based on the particle swarm optimization algorithm applied to estimate harmonic components in radial distribution feeders. It is important to mention that this method is not applied as harmonic state estimator, neither to estimate the total harmonic distortion at the substation. So, the proposed method can be employed to estimate the harmonic components in specific ...

2001
Pietro Polotti Gianpaolo Evangelista

The goal of this paper is to introduce a complete analysis/resynthesis method for the stationary part of voiced-sounds. The method is based on a new class of wavelets, the Harmonic-Band Wavelets (HBWT). Wavelets have been widely employed in signal processing [1, 2]. In the context of sound processing they provided very interesting results in their first harmonic version: the Pitch Synchronous W...

1997
Khaled N. Hamdy Ahmed H. Tewfik Ting Chen Satoshi Takagi

We propose a new time-scale modi cation method for high quality audio signals. Our approach strives to preserve pitch and timbre. In our method, the signal is represented as the sum of sinusoidal components and a residual (edges and noise). The decomposition is computed via a combined harmonic and wavelet representation. Time-scaling is performed on the harmonic components and residual componen...

2002
C. Q. Tran Z. Barnea M. D. de Jonge B. B. Dhal D. Paterson D. J. Cookson C. T. Chantler

In line with an ongoing programme to determine accurately x-ray attenuation coefficients, we have developed a method for the quantitative determination of the effect on experimental results of monochromator harmonic components in a synchrotron beam. The technique can be adapted to suit a wide variety of experiments, and is of particular interest because it determines the effect of the harmonic ...

2009
Vaclav Papez Stanislava Papezova

− Test signals that are used by high precise measuring have to contain minimum harmonic components of basic frequency. All non-linearity in electronic circuits may be sources of harmonic components in testing signals. Traditional methods and new method for the small nonlinearity measuring of electronic components and circuits are described in this paper. There are presented examples of measured...

Assessment of complex harmonic current contribution of each wind turbines at connection point of a wind farm to the grid (primary emission) is presented in this paper. Moreover, contribution of grid background harmonic voltage distortion on harmonic current distortion (secondary emission) of each turbine is also evaluated. Both assessments are represented based on primary and secondary transfer...

2017
Jing Liu Zhigang Liu

Harmonic pollution of double fed induction generators (DFIGs) has become a vital concern for its undesirable effects on power quality issues of wind generation systems and grid-connected system, and the double pulse width modulation (PWM)converter is one of the main harmonic sources in DFIGs. Thus the harmonic analysis of the converter in DFIGs is a necessary step to evaluate their harmonic pol...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید