short-time Fourier transform domain
New Approaches for Speech Enhancement in the Short-Time Fourier Transform Domain
... STFT domain and used it to derive an extension of the Lebart’s LRSV estimator that takes into account the energy contribution of the direct path and reverberant parts of ...reverberation time, which ...
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Skin Blood Flow Response Signal Using Time and Frequency Domain Features for Pressure Ulcer Evaluation
... study, short, moderate and prolonged recovery time are selected as K =1800, K=6000, and K=24000 ...into short-time segments and FFT is applied on each ...as Short-Time ...
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Diagnostics of Transient States in Hydraulic Pump System with Short Time Fourier Transform
... frequency domain, so applied length of window is fairly ...from time domain because the length of vector taken for calculations was the same and we did not take it into ...in time and ...
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Multi-Band Frequency Window for Time-Frequency Fault Diagnosis of Induction Machines
... frequency domain analysis requires stable working conditions, which is not the case for wind generators, motors driving varying loads, ...the time-frequency domain -such as a spectrogram- is required ...
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Radar Signal Intra Pulse Feature Extraction Based on Improved Wavelet Transform Algorithm
... transformation domain is no longer applicable to the modern radar signal processing, and it is necessary to seek new methods in the two-dimensional transformation ...The time-frequency analysis method is ...
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Power Quality Analysis Using Wavelet Transform: A Review
... and time-varying ...both time and frequency analysis methods. Short-time Fourier transform (STFT) is a signal processing tool used for analysis, in frequency domain, of ...
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The Acquisition and Short Time Fourier Transform of Lung Sounds
... Abstract: The paper designed a portable four-channel lung sounds acquisition system. The system first completed the lung sound signal amplifying, filtering and other pretreatment, then the lung sound signals of the ...
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Time-Frequency Domain Characterization of Stationary and Non stationary Signals
... achieve time frequency distribution of such ...uses Fourier transform, Short time Fourier transform, wavelet transform, and Hilbert Huang transform for the ...
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Recent advances of the signal processing techniques in future smart grids
... are time and frequency dependent. Frequency domain analysis is used to extract features and information for possible transient con- ...between time and frequency domains is the Fourier trans- ...
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Comparison of STFT and CWT for Normal subjects and OSA patient
... Short time Fourier transform (STFT) is a Fourier related transform which is used to determine the sinusoidal frequency and phase content of the signal which changes over ...and ...
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Classification of machinery vibration signals based on group sparse representation
... Other measures might also be implemented at this stage, such as synchronization [3] and pre-whitening [4] etc. In feature extraction step, a meaningful feature vector is extracted from the vibration signal by using a ...
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New significance test methods for Fourier analysis of geophysical time series
... climatic time series as a function of their geographic ...have short phase lags of about 3 months between their location of origin (the tropical Pacific, and the polar regions, implying a rapid transporta- ...
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Identification of Radar Signals Based on Time-Frequency Agility using Short-Time Fourier Transform
... main time characteristics of a pulsed radar ...the time the radar system takes to radiate each pulse and time between the beginnings of the pulses ...
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The Method to Obtain the Rise and Fall of Anxiety, Estrogen, Progesterone and EEG Signals and Their Coincident Frequencies
... emerge short after the physiological levels of estrogen begin to rise, reaching their high- est peak near day 14 of the ovulatory phase of the cycle, while progesterone be- gins to emerge close to day 14 and ...
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Short Term Sinusoidal Modeling of an Oriental Music Signal by Using CQT Transform
... modeling, short term and long term aspects modeling. The analysis of the short term estima- tion and the signal parameters modeling will be dis- cussed in third ...
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Identification of ERD using Fuzzy Inference Systems for Brain-Computer Interface
... In our experiments subjects were asked to perform several hand movements at irregular times (with random intervals between two movements) during a session of 40 seconds. The hand movement consists of pushing a switch ...
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The Quaternion Domain Fourier Transform and its Application in Mathematical Statistics
... Mawardi Bahri received his B.S. degree in mathematics from Hasanuddin University, Makassar, Indonesia, in 1997 and his M.S. degree in mathematics from the Bandung Institute of Technology, Bandung, Indonesia, in 2001. He ...
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Design and Performance Analysis of FFT in OFDM applications using VHDL
... Fast Fourier transform (IFFT) converts the frequency domain data set into samples of the corresponding time domain representation of this ...the time domain ...
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Minimal Generalized Time Bandwidth Product Method for Estimating the Optimum Fractional Fourier Order
... Figure 1 shows the main idea of such coarse-to-fine of the general time-bandwidth product (GTBP). At the beginning, GTBP is computed for different values of order of FrFT that are distributed over the interval [0, ...
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Watermarking of digital images with iris based biometric data using wavelet and SVD
... IJEDR1601125 International Journal of Engineering Development and Research (www.ijedr.org) 730 The verification of the watermark can be done by correlating with the inserted watermark. The scaling vector α plays an ...
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