During the analysis of MASW 2D Seismic data, once the dispersion curve is generated, after that we have to delete the low and high quality data in order to avoid noises.
But after that on what basis we can edit those dispersion curve (by deleting points)?
The steepness of the low frequency section ( < 1.5 hz) of the dispersion curves adds lots of computational instability during inversion and as such is better to delete them before inversion
Hello,
The SFK transform is the enhanced method for f-k analysis of MASW data.
See the matlab code with the SFK transform implementation (dispersion curves are plotted): Code SFK-transform
it is very easy. You run an example: it draws the dispersion curves - you see how it works.
also you can get it on mathworks:
https://www.mathworks.com/matlabcentral/fileexchange/71845-masw-dispersion-curve-with-slant-f-k-transform
Best Regards!
Hi,
I suggest you to see the Geopsy website: you will find suitable application and
Tutorials
https://www.geopsy.org/
Hi, if I understand your question correctly, you can filter your data before drawing the dispersion curve.
you must filter your raw data, and choose the appropriate frequency range to transform the t-x domain to the f-k domain(dispersion image) to get more accurate dispersion curves.
To ensure stability especially at the steep slopes of the dispersion curves
- Badges
- Science topic