BaselineK

D. Melgar 05/2013

This code performs baseline corrections to accelerometer data using 1 of 6 methods:

• Fit a piece wise linear function (Boore)
• Fit a quadratic (Boore)
• High pass filter the data then integrate
• Use static field constraint analytically
• Use static field constraint with grid search
• Fit a step function, with or without static field constraints

There are some extra references in the code you can look at and for a detaield discussion of the pros and cons of the methods and if you use this code please look at and reference:

Melgar, D., Y. Bock, D. Sanchez, and B.W. Crowell (2013), On robust and reliable automated baseline corrections for strong motion seismology, J. Geophys. Res., 118, doi: 10.1002/jgrb.50135