Digman S Wavelet Analysis and Transient Signal Processing Applications 2019 [TorrentX]

Textbook in PDF format
Wavelets and wavelet transforms are becoming prevalent new tools in the areas of signal processing and mathematical modeling because of the different advantages they have as compared to traditional techniques. The Fourier Transform decays a signal into a frequency spectrum at the loss of time domain information. Wavelet transforms involve decomposing a signal into various levels to study frequency patterns over time. High frequency characteristics in the lower levels and low frequency characteristics in the higher levels permit the analyst to make forecasting regarding the nature of the signal. In order to develop safe, cost-effective, and reliable structures in the future, it is imperative for designers to cross-check assumptions made during the design phase with the conditions that the structure will actually experience. Ideally, the designer’s understanding of those conditions is reflected in the design, and the structure’s response to such loads should show close agreement.
However, in many cases, the worst-case scenarios controlling the design do not actually occur; therefore, the true structural design is never fully verified. This does not suggest that the design is unreasonable; rather, it indicates that the response to extreme loads remains somewhat hypothetical. In the instances where extreme events occur, there are rarely quantifiable measures of how the structure performed due to the absence of permanently installed or embedded instrumentation along
with a continuously sampling acquisition methodology.
This book is intended to introduce wavelet and some of its applications and technique in signal and image processing. It presents the wide-ranging coverage information to all aspects of the structural health monitoring of civil engineering structures for students and engineers involved in all stages from concept design to maintenance. In the last decade, extensive research has been carried out for developing vibration-based damage detection algorithms that can relate structural dynamics changes to damage occurrence in a structure. In the meantime, the wavelet transform (WT), a signal processing technique based on a windowing approach of dilated ‘scaled’ and shifted wavelets, is being applied to a broad range of engineering applications. This book will serve as an invaluable reference tool for those who are concerned with the application of wavelets to signal processing