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Search results for: wavelet
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Year: 2011, Volume: 11, Number: 3
... . We propose an algorithm based on Fourier series equivalent to using the corresponding boundary wavelets which is proved to be appropriate to the application of time- [14 ... Electrical and Computer Engineering Volume 11, Number 3, 2011 Alleviating Border Effects in Wavelet Transforms for Nonlinear Time-varying Signal Analysis Hang SU, Quan LIU, Jingsong LI ...
Year: 2017, Volume: 17, Number: 2
... (16) is thresholded similar to E current_norm. ap_coef1 and ap_coef2 for 2 wavelets in a pair. Total The procedure results in the obtainment of optimal ap_coef ... Advances in Electrical and Computer Engineering Volume 17, Number 2, 2017 Wavelet Energy and the Usefulness of its Powers in Motion Detection Igor VUJOVIĆ, Ivica KUZMANIĆ ...
Year: 2013, Volume: 13, Number: 3
... decomposes signals over dilated process, the algorithm converts into à trous wavelet and translated wavelets to analyze signal structures of very transform [23], as shown in ... Engineering Volume 13, Number 3, 2013 A Time Delay Estimation Method Based on Wavelet Transform and Speech Envelope for Distributed Microphone Arrays Zhe CHEN, Shuwen WANG, ...
Year: 2009, Volume: 9, Issue: 3
... The network structure is shown in Figure 1. Input layer is DWT operates on wavelets that are discretely sampled and composed of input nodes that are equal to the ... zero and standard deviation of unity. Feature extraction module extracts II. FEATURE EXTRACTION wavelet approximate coefficients of ECG signals in conjunction with three timing interval features. Then ...
... images. The technique to enhance the hiding capacity of the existing proposed method employs wavelet transforms to decompose images in a way similar to the Human Visual System ( ... in Electrical and Computer Engineering Volume 14, Number 2, 2014 A Blind High-Capacity Wavelet-Based Steganography Technique for Hiding Images into other Images Safwat HAMAD1, Amal KHALIFA1, ...
Year: 2017, Volume: 17, Number: 3
... Electrical and Computer Engineering Volume 17, Number 3, 2017 Wind Speed Prediction with Wavelet Time Series Based on Lorenz Disturbance Yagang ZHANG1,2, Penghui WANG1, ... with the At present, short-term wind speed forecasting methods atmospheric dynamical system, a wavelet-time series improved include Kalman filtering [2 ], neural network [3-5] ...
Year: 2010, Volume: 10, Issue: 3
... , Number 3, 2010 A New Protection Scheme for High Impedance Fault Detection using Wavelet Packet Transform Navid GHAFFARZADEH and Behrooz VAHIDI Department of Electrical Engineering, Amirkabir University ... , wavelet packet analysis of the feeder current signal. The "Verification of the wavelet-based HIF detecting algorithm performance in detection scheme is based on the using db4 wavelet ...
Year: 2010, Volume: 10, Issue: 4
... . The analytic construction of between N and the imposed CR. dictionaries such as wavelets, curvelets etc. stems from the For the random projection matrix used in ... diagnostics. In most ECG compression algorithms, dictionaries are better that those using the wavelet the percentage root-mean-square difference (PRD) measure overcomplete dictionaries. Starting from the ...
29. Fault Detection and Localization in Transmission Lines with a Static Synchronous Series Compensator
Year: 2015, Volume: 15, Number: 3
... calculating the distance to the fault is Based Fault Locating in Radial Distribution Systems Using Wavelets smaller than 1.5% of the transmission line length which is and Neural Networks ... lines with a SSSC in voltage signals sampled at high frequencies. Then, the wavelet transform is used for calculating the current and voltage service. This approach is ...
Year: 2012, Volume: 12, Number: 4
... , "Power quality filter's parameters is determined. Its performance is tested assessment via wavelets transform analysis," IEEE Trans. on Power on real-data by comparison to ... time measured from the moment when RMS currently employed to fulfill this task. Discrete Wavelet voltage drops below the 90% threshold to the moment it Transforms, ( ...
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