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Surface Wave Dispersion Measurement

This repository contains the code and data for the surface dispersion measurement project. The project aims to measure the dispersion of a system using various methods. Includes:

1. F-K method

cite: Naskar, T., and Kumar, J., (2022). MATLAB codes for generating dispersion images for ground exploration using different multichannel analysis of surface wave transforms, GEOPHYSICS 87: F15-F24.

2. tau-p method

cite: Naskar, T., and Kumar, J., (2022). MATLAB codes for generating dispersion images for ground exploration using different multichannel analysis of surface wave transforms, GEOPHYSICS 87: F15-F24.

3. Refraction Microtremor (ReMi) method

cite: J.N. Louie. Shear wave velocity to 100 meters depth from refraction microtremor arrays. Bull. Seismol. Soc. Am., 91 (2) (2001), pp. 347-364

4. Space Autocorrelation (Spac) method

cite: K. Aki. Space and time spectra of stationary stochastic waves, with special reference to microtremors. Bull. Earthq. Res. Inst., Univ. Tokyo, 35 (1957), pp. 415-457

5. High Resolution Linear Radon Transform (HRLRT) method

cite: Luo, Y., Xia, J., Miller, R.D., Xu, Y., Liu, J. & Liu, Q., 2008. Rayleighwave dispersive energy imaging using a high-resolution linear Radon transform, Pure appl. Geophys., 165, 903–922.

6. Modified Frequency–Bessel Transform (F-J) method

cite:

  1. Wang (2019) : Frequency-Bessel Transform Method for Effective Imaging of Higher-Mode Rayleigh Dispersion Curves From Ambient Seismic Noise Data

  2. Luo et al., (2022): Improvement of Frequency–Bessel Phase-Velocity Spectra of Multicomponent Cross-Correlation Functions from Seismic Ambient Noise

7. Phase shift method

cite: Park C B, Miller R D, Xia J. Imaging dispersion curves of surface waves on multi-channel record[M]//SEG Technical Program Expanded Abstracts 1998. Society of Exploration Geophysicists,1998: 1377–1380.

8. Phase weighted slantstacking method

cite: Cheng F, Xia J, Zhang K, Zhou C, Ajo-Franklin J B. Phase-weighted slant stacking for surface wave dispersion measurement[J]. Geophysical Journal International, 2021, 226(1): 256–269.

This code uses some functions from Cheng et al.'s GitHub repository:

Cheng's GitHub repository: https://github.com/marscfeng/dcImage4ChengIVDF2023

Naskar's GitHub repository: https://github.com/Tarun-Naskar/Spectral-whitening

The specific use of the code can be seen in the demo.m.

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