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fast Fourier transform analysis

DECIPHERING THE FINEST IMPRINT OF GLACIAL EROSION: OBJECTIVE ANALYSIS OF STRIAE PATTERNS ON BEDROCK

DECIPHERING THE FINEST IMPRINT OF GLACIAL EROSION: OBJECTIVE ANALYSIS OF STRIAE PATTERNS ON BEDROCK

... image analysis techniques of Fast Fourier Transform (FFT), and the experimental investigations by means of Saltikov’s directed secants analysis (rose of intersection densities), applied ...

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ELECTROENCEPHALOGRAPHY (EEG) SIGNAL ENHANCEMENT AND ANALYSIS USING WAVELET TRANSFORM

ELECTROENCEPHALOGRAPHY (EEG) SIGNAL ENHANCEMENT AND ANALYSIS USING WAVELET TRANSFORM

... The electroencephalograph (EEG) is technique of recording electrical activity of brain. In this normalized compressed EEG data wavescataloging is done using the Discrete Wavelet Transform (DWT) with Fast ...

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Nonlinear and Non-stationary Vibration Analysis for Mechanical Fault Detection by Using EMD-FFT Method

Nonlinear and Non-stationary Vibration Analysis for Mechanical Fault Detection by Using EMD-FFT Method

... The Hilbert-Huang transform (HHT) is a powerful method for nonlinear and non-stationary vibrations analysis. This approach consists of two basic parts of empirical mode decomposition (EMD) and Hilbert ...

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On Two Transform Methods for the  Valuation of Contingent Claims

On Two Transform Methods for the Valuation of Contingent Claims

... applied Fourier analysis to determine option prices such as [4] [5], just to mention a ...the fast Fourier transform which represents one of the most fundamental advances in scientific ...

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Parameterized Spectral Bathymetric Roughness Using the Nonequispaced Fast Fourier Transform

Parameterized Spectral Bathymetric Roughness Using the Nonequispaced Fast Fourier Transform

... There is an unnatural phenomenon, perhaps a non-geological process, occurring with this artificial data. It can also be seen in the shipwreck analysis to come. The interference produced by the transformation ...

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Fast Fourier Transform Approach for Signal Analysis

Fast Fourier Transform Approach for Signal Analysis

... discrete Fourier transform (DFT). For better understanding of fast Fourier transform (FFT) algorithm (With the help of functions in Matlab – Structured Programming and simple example) ...

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Gum Arabic-Coated Magnetic Nanoparticles For Methylene Blue Removal

Gum Arabic-Coated Magnetic Nanoparticles For Methylene Blue Removal

... BET analysis, and Fourier transform infrared ...a fast and simple method for removal and recovery of methylene blue dye (MB) from aqueous solutions by using the synthesised magnetic ...

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Classification of EMG Signals for Assessment of Neuromuscular Disorders

Classification of EMG Signals for Assessment of Neuromuscular Disorders

... classification. Fast Fourier transform (FFT) and principal component analysis (PCA) was used on sEMG signals taken from bicep brachii muscle and the classifications of neuromuscular disorders ...

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Study and Analysis of Fourier Transformation

Study and Analysis of Fourier Transformation

... Discrete Fourier Transform, Fast Fourier Transform, Fourier Series, Fourier-Stieltjes Transform, Fourier Transform--1, Fourier ...

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Recent advances of the signal processing techniques in future smart grids

Recent advances of the signal processing techniques in future smart grids

... bility analysis, load management system, and the interconnected ...The analysis of these systems and detection of certain conditions is a burdensome task in such a chal- lenging ...frequency ...

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Fpga Implementation Of 16-Bit Radix-2 Fft Architecture

Fpga Implementation Of 16-Bit Radix-2 Fft Architecture

... The Fast Fourier Transform is an algorithm optimization of the DFT—Discrete Fourier ...the Fourier Transform, a continuous process for the analog world, to make it suitable for ...

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On Some Applications of the Fast Discrete Fourier Transform »

On Some Applications of the Fast Discrete Fourier Transform »

... Alkiviadis G. Akritas taught at the University of Kansas for twenty years before he moved to Greece, where he has been teaching and doing research in the Department of Computer and Communication Engineering at the ...

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Validity ty of spectral analysis of evoked potentials in brain research

Validity ty of spectral analysis of evoked potentials in brain research

... tral analysis using the fast Fourier transform (FFT), especially to dis- cover the relation of cognitive ability to so-called brain ...spectral analysis, using a model ...spectral ...

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Hybrid Optical Cryptography and Compressive Sensing Based on Orthogonal Matching Pursuit

Hybrid Optical Cryptography and Compressive Sensing Based on Orthogonal Matching Pursuit

... Symmetric encryption algorithms use the same key for encryption and decryption operations. Symmetric encryption is very fast and easy to implement in electronic devices. In asymmetric encryption, one general key ...

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Evaluation of alternative approach for suspension corner damping by the use of hydraulic top mounts

Evaluation of alternative approach for suspension corner damping by the use of hydraulic top mounts

... the Fourier series method, the same cannot be done in the case of a general aperiodic input since it can only be written as the sum of an infinite number of harmonics leading to non-causal results ...

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Identification of Fault in a Transmission Line by using Wavelet and Location by Fuzzy

Identification of Fault in a Transmission Line by using Wavelet and Location by Fuzzy

... traditional Fourier methods in analysing physical situations where the signal contains discontinuities and sharp ...Wavelet analysis provides immediate access to information that can be obscured by other ...

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VLSI Implementation of Pipelined Fast Fourier Transform

VLSI Implementation of Pipelined Fast Fourier Transform

... Discrete Fourier transform (DFT) is a very important technique in modern digital signal processing (DSP) and telecommunications, especially for applications in orthogonal frequency demodulation multiplexing ...

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Identification of hip fracture patients from radiographs using Fourier analysis of the trabecular structure: a cross-sectional study

Identification of hip fracture patients from radiographs using Fourier analysis of the trabecular structure: a cross-sectional study

... for analysis of histological sections ...the analysis by selecting directions in which there was the most infor- mation about bone structure ...the Fourier transform is performed and a profile ...

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Measuring Tail Dependence for Aggregate Collateral Losses Using Bivariate Compound Shot Noise Cox Process

Measuring Tail Dependence for Aggregate Collateral Losses Using Bivariate Compound Shot Noise Cox Process

... joint Fast Fourier trans- ...sensitivity analysis on the parameters of a shot-noise Cox process from a Poisson process using the risk measure of ...

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Enhancement of Retinex Algorithm using Fast Fourier Transform

Enhancement of Retinex Algorithm using Fast Fourier Transform

... which is large enough to fully describe the spatial domain image. Once the image is transformed into the frequency domain, filters can be applied to the image by convolution. FFT turns the complicated convolution ...

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