Improve HVNR Technique by Using Wavelet Transform

Rahnema, H and Bozorgi, M.H (2013) Improve HVNR Technique by Using Wavelet Transform. In: The 1st Iranian Conference on Geotechnical Engineering, October 2013, Ardabil, Iran.

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Abstract

The spectral ratio between horizontal and vertical components noise (H/V ratio) of microtremors has been used to estimate fundamental resonance frequency of the site. In this study we investigate the application of the wavelet analysis to improve the (HVNR) technique for site effect estimation. Wavelet analysis has been widely used in the last decade for its capacity to localise the signal in both the time and frequency domains. This property, which derived directly from multiresolution analysis provide us the ability to decompose a signal in a well localized set of coefficients and identify the non-stationary portions of it.In the present study we use the WT in order to eliminate the non-stationarities in microtremor signals before we calculate the spectrum of each one using conventional FFT algorithms.

Item Type: Conference or Workshop Item (Poster)
Persian Title: -
Persian Abstract: -
Subjects: Divisions > Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Divisions: Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Subjects > Conferences > The 1st Iranian Conference on Geotechnical Engineering, October 2013
Date Deposited: 09 Apr 2019 06:58
Last Modified: 09 Apr 2019 06:58
URI: http://repository.uma.ac.ir/id/eprint/5440

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