9. Help

Below are links to explanations on different subjects given on our Website.

Terms used in BIDO

- Data preprocessing

- H/V

- Huddle test

- Threshold NS ratio

- NS ratio

- R/V

- Segment cluster

- Synthetic data (simulated observation data for demo purposes)

Data/parameter files format

- Segment file (designating the parts of waveforms to be used in the analysis)

- Seism file (array geometry, data file names etc.)

- Waveform data

Diagolues and files generated

- Explanation on the dialogue following the activation of the program

- Files generated beneath RESULT

- Files generated beneath RESULT/1 and other folders with numerical names (in case of array analysis)

- Files generated beneath RESULT/ave (in case of array analysis)

- Files generated beneath RESULT/ave (in case of a huddle test)

Various settings

Calculations

- How to modify the maximum frequency in the calculation of averages

- How to modify the method of outlier processing in the calculation of averages

- How to modify the maximum number of data components and the maximum number of segments that can be dealt with in the Fortran program

Gnuplot

- How to render invalid the automatic adjustment of the range of frequencies plotted (how to fix its upper limit)

- How to render invalid the automatic adjustment of the range of phase velocities plotted (how to fix its upper limit)

- How to render invalid the logarithmic scaling of the frequency axis

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