Recognition of Harmonic Sounds in Polyphonic Audio using a Missing Feature Approach: Extended Report [PDF]
, 2013 A method based on local spectral features and missing feature techniques is proposed for the recognition of harmonic sounds in mixture signals. A mask estimation algorithm is proposed for identifying spectral regions that contain reliable information ...
Plumbley, MD +8 more
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Spectrogram Track Detection: An Active Contour Algorithm [PDF]
, 2010 In many areas of science, near-periodic phenomena represent important information within time-series data. This thesis takes the example of the detection of non-transitory frequency components in passive sonar data, a problem which finds many ...
Lampert, Thomas
core +7 more sources
Improved harmonic detection method based on ip-iq theory [PDF]
E3S Web of Conferences, 2021 Based on the traditional ip-iq harmonic detection theory, the accuracy of harmonic detection is easily affected by the phase-locked loop (PLL) output phase error, and the single low-pass filter (LPF) detection accuracy and filtering effect cannot be ...
Yao Zhisen, Gao Guige
doaj +1 more source
ON THE CONVERGENCE OF THE EULER HARMONIC SERIES [PDF]
, 2000 The aim oj this article is to study the convergence oj the Euler harmonic series. Firstly, the results concerning the convergence oj the Smaralldache and Erdos harmonic junctions are reviewed Secondly, the Euler harmonic series is proved to be convergent
Tabirca, Tatiana, Tabirca, Sabin
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Harmonic diffeomorphisms of noncompact surfaces and Teichmüller spaces [PDF]
, 2002 Let g : M -> N be a quasiconformal harmonic diffeomorphism between noncompact Riemann surfaces M and N. In this paper we study the relation between the map g and the complex structures given on M and N.
Markovic, V. (Vladimir) +1 more
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A Novel Harmonic Detection Algorithm Based on Time-varying Observer
, 2020 This paper proposed a novel harmonic detection method for active power filter that the linear time-varying Luenberger observer (LTLO) is utilized for detecting specific harmonic currents in real time.
Wang, Z +5 more
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Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters [PDF]
, 2013 A measurable magnetic (nonlocal) contribution to the second harmonic generation (SHG) of nonmagnetic materials is an intriguing issue related to chiral materials, such as biomolecules.
Larciprete, Maria Cristina +11 more
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Harmonic detection algorithm based on improved SVD and Prony
Dianzi Jishu Yingyong, 2019 An improved algorithm based on singular value decomposition(SVD) and Prony is proposed to solve the problem that the traditional Prony algorithm is not very accurate because it is sensitive to noise during harmonic and inter-harmonic detection.
Ying Jun, Zhu Yunpeng, He Chao
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A new ip-iq detection method without phase-locked loop
Gong-kuang zidonghua, 2014 For problems of large calculation amount, complex vector conversion, poor real-time performance and weak robustness of common harmonic detection methods based on instantaneous reactive power, a new ip-iq detection method without phase-locked loop was ...
YE Jiazhuo +3 more
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One-Step-Prediction Discrete Observer Based Frequency-Locked-Loop Technique for Three-Phase System
IEEE Access, 2021 In grid-tied power converters, the grid parameters such as the frequency, phase angle of the fundamental component, and the harmonics are essential to the control of power converters, the fast and accurate estimation of the grid parameters is a challenge
Wei Hu +6 more
doaj +1 more source