نتایج جستجو برای: harmonic components

تعداد نتایج: 434371  

2008
Stas Tiomkin David Malah

•Apply a DFT of length dTi to the quasi-periodic sequence: –Harmonic frequencies: k = lTi, l = 1, 2, . . . , d –Non-harmonic frequencies: k + 1, k + 2, . . . , k + Ti − 1, where k = 1, Ti, 2Ti, . . . , (d − 1)Ti •Non-harmonic content (NHC) in statistically generated phonemes is much lower, compared to NHC in natural phonemes. Improving Speech Features Dynamics Learning Non-Harmonic Components S...

Journal: :The Journal of the Acoustical Society of America 2004
Elizabeth S Olson

Intracochlear pressure was measured close to the basal basilar membrane in gerbil with pure-tone stimulation. This report describes harmonic distortion in the pressure. The harmonic components were tuned in frequency and physiologically vulnerable, implying that they were related to the cell-derived force that sharpens tuning at low levels in healthy cochleae. For stimulus frequencies in the vi...

Journal: :The Journal of the Acoustical Society of America 1998
B Roberts J M Brunstrom

It is unclear whether the perceptual segregation of a mistuned harmonic from a periodic complex tone depends specifically on harmonic relations between the other components. A procedure used previously for harmonic complexes [W. M. Hartmann et al., J. Acoust. Soc. Am. 88, 1712-1724 (1990)] was adapted and extended to regular inharmonic complexes. On each trial, subjects heard a 12-component com...

Journal: :The Journal of the Acoustical Society of America 1947

Journal: :Energies 2021

The paper deals with a new methodology for calculating the filter parameters. basis is respect fact that real current consists of other harmonic components, which tuned. proposed was used to design filters traction substation 25 kV/50 Hz. operation locomotives in AC supply systems Hz leads rising higher order currents. Due 1-phase system, these are mainly 3rd and 5th harmonics. By simulation su...

ژورنال: ژئوفیزیک ایران 2018

Surface nuclear magnetic resonance (surface-NMR) method is a well-known tool for determining the water-bearing layers and subsurface resistivity structure. Harmonic interference is an inevitable interference in surface-NMR measurements. Accurate estimation of harmonic interference parameters (i.e., fundamental frequency, phase and amplitude) leads to better retrieval of power-line harmonics and...

Background and Objectives: Despite superior privileges that multiphase motors offer in comparison with their three-phase counterparts, in the field of multiphase linear induction motors (LIMs) few studies have been reported until now. To combine the advantages of both multiphase motors and linear induction motors, this paper concentrates on multiphase LIM drives considering the end effects. Met...

This paper proposes a new hybrid active power filter, including voltage source converter (VSC) based active power filter and Thyristor Controllable LC Passive Filter (TCLC-HAPF) for eliminating harmonic load current components and compensating reactive power. This new structure which is based on the separation of high and low-frequency components of load current idea can reduce the drawbacks of...

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