Wavelet packet tiling in time-frequency plane
Wavelet-Based Characterization and Stochastic Modelling of Pulse-like Ground Motions on the Time-frequency Plane
... of time-frequency representation methods An investigation on the performance of several such methods which have been previously used in seismic related applications, namely the HWT, MWPT, ST and EMD is ...
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Time Domain Signal Analysis Using Wavelet Packet Decomposition Approach
... of time signals using wavelet packet filtering ...of wavelet packet transform in time signal analysis and ...of wavelet packet is appreciable while comparing with ...
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Wavelet-Based Speech Enhancement Using Time-Frequency Adaptation
... novel wavelet-based spe- ech enhancement using time-frequency adaptation for pro- viding robustness to nonstationary and colored ...perceptual wavelet packet transform (PWPT) is applied ...
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Non Stationary Signal Segmentation and Separation from Joint Time Frequency Plane
... Segmentation; Time-Frequency Distribution; Short-Time Fourier Transform; Non-Stationary; Wiener Masking ...in time domain ...the frequency information and its reflection on the signal ...
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Offline and real time noise reduction in speech signals using the discrete wavelet packet decomposition
... The wavelet filtering program with its interface to the Xaudionet Client program and the XAD- ML100 program is shown in the flowchart of Figure ...the wavelet denoising program with the required data size. ...
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Wavelet packet modulation a new equalization scheme
... simple time domain equalization, interference cancellation, as well as no need of frequency tuned receiver filters, converted this system in a highlighted technology for wireless communications ...
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PERFORMANCE ANALYSIS OF OFDM AND WAVELET PACKET MODULATION
... of Frequency and Phase Offset on System Performance Frequency offset can be caused by misalignment between receiver and transmitter oscillator frequencies and/or due to Doppler ...under frequency ...
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Comparison of SNR Values for Different Wavelet Functions using Wavelet Packet Transformation
... the frequency plane into dyadic bandwidths with resolution in exponential ...particular frequency bandwidth. Wavelet packet transformation is generalization of wavelet ...in ...
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Comparative Study of Wavelet and Wavelet Packet Transform for Denoising Telephonic Speech Signal
... [7]. Wavelet Transform provides the simultaneous representation of time– frequency information of the signal ...[7]. Wavelet Transform is superior to Fourier Transform and Short Time ...
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Comparison of feature extraction from wavelet packet based on reconstructed signals versus wavelet packet coefficients for fault diagnosis of rotating machinery
... nonstationary. Time frequency techniques are suitable for analyzing this type of ...signals. Wavelet analysis is one of the most powerful methods in this ...Therefore, wavelet analysis is used ...
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Wavelet Packet Entropy Based Control of Myoelectric Prosthesis
... a frequency based feature set was proposed and applied on to MES collected from healthy subjects at different contraction ...classical time domain feature ...called time dependent power spectrum ...
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Envelope-Wavelet Packet Transform for Machine Condition Monitoring
... In order to overcome the drawback of fixed time-frequency resolution in STFT, WPT can be used which has the tendency to perform multi-resolution analysis. Digitized vibration data are passed through high ...
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Texture Classification by Bit plane Multifractal Spectrum and Bit plane Barycentric Coordinates of Wavelet Coefficients Based on SVD
... and wavelet transform is presented. Wavelet transform is employed on texture images having been preprocessed with ...the wavelet coefficients in both the 3-Level high frequency domains and the ...
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Video Watermarking Based On Wavelet Packet Analysis for Various Attack
... computing time & the requirement of the original video in the extraction process ...uses wavelet packet and encrypt the watermark image to the original ...“Haar” wavelet transform, which is ...
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Windowing versus Best Tiling for Wavelet Image Compression
... of wavelet coefficients where the parent and children are located in different subbands in order to obtain good compression ...and tiling methods described above use only information from the same ...and ...
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Integration of Wavelet Transformation and Statistical Coding for Image Compression with Tiling
... Figure 1: Image Compression model B. Image Tiling The primary preprocessing task is tiling. In this progression, the input information in the form of an image is divided into a number of rectangular ...
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A Wavelet Packet and Mel-Frequency Cepstral Coefficients-Based Feature Extraction Method for Speaker Identification
... The results for the WPT are provided in Table 1 for the six decomposition level under the column labelled “Wavelet Packet Transform.” The results obtained for the DWT in previous study are also provided to ...
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A hybrid wavelet and time plane based method for QT interval measurement in ECG signals
... 6 wavelet and one time plane based with modifications in their algorithms and inclusion of two more wavelets (Daubechies 8 and Symlet ...of time plane feature extraction method it gives ...
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Voice Transmission By Wavelet Packet Modulation
... i.e., wavelet packet modulation and demodulation ...real time recording device to record the voice message, it is then modulated and demodulated by using Wavelet Packet Transformation, ...
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Spectrally Efficient OFDMA Lattice Structure via Toroidal Waveforms on the Time-Frequency Plane
... 4. Simulation Results In this study, the aim is to increase the system throughput by constructing a toroidal waveform in a rectangular lattice structure. For this purpose, di ff erent orders of Hermite- Gaussian pulses ...
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