NDLI: Signal Denoising Based on Wavelet Thresholding

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Signal Denoising Based on Wavelet Thresholding

Content Provider	NIT Kurukshetra
Advisor	Mittal, Monika
Researcher	Saxena, Sachin
Date Awarded	2010-01-01
Abstract	In any type of signal processing, it has been demonstrated that it is important to remove noise from the signal before recognizing or classifying the patterns. Otherwise, the whole process may give wrong results. Techniques based on thresholding of wavelet coefficients are gaining popularities for denoising data. The idea is to transform the data in to the wavelet basis, where the large magnitude wavelet coefficients are mainly the signals and the smaller magnitude coefficients represents the noise. By suitably modifying these coefficients, the noise can be removed from the data. The soft thresholding and hard thresholding methods are being used but have limitations; to overcome those limitations in this dissertation a new thresholding method is proposed which is a hybrid combination of Soft and Hard thresholding. For comparison the simulation results are presented. Paper accepted from this work: Title: "Signal denoising based on wavelet thresholding" Conference: International Conference on Advances in Information, Communication Technology and VLSI Design (ICAICV 2010), PSGCT SPONSERED BY IEEE MADRAS
Page Count	69
File Format	PDF
Language	English
Publisher Department	Department of Electrical Engineering
Publisher Institution	National Institute of Technology, Kurukshetra
Publisher Place	Kurukshetra, Haryana
Access Restriction	Open
Subject Keyword	Denoising of Signal with Pre Added Noise Denoising of System Denoising tools Different Families of Wavelets Different Types of Noises Fourier Transform Versus Wavelet Transform Modem Methods of Denoi Sing Noise Added at the Output Noise and Denoising Techniques Properties of Different Wavelet Families Radar Tracking Using Wavelets Based Denoising Signal Denoising Signal Reconstruction (Synthesis) Reconstructing Approximations and Details Threshold Selection Thresholding Strategies Types of Wavelet Wavelet Applications Wavelet Decomposition Wavelet Definition and Significant Properties Wavelet Packets Wavelet theory Wavelet Thresholding Scheme Wavelet Thresholding Techniques and Hybrid Thresholding
Content Type	Text
Educational Degree	Master of Technology (M.Tech.)
Resource Type	Thesis

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