/Time-frequency-analysis

Time-frequency analysis of SAC format files.

Primary LanguageC

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NOTICE!!! THIS PROGRAM COMES WITH NO WARRANTY, TO THE EXTEND PERMITED BY LAW!

Time-frequency-analysis

  • Executing time-frequency analysis with Short Time Fourier Transform(STFT) method.

Installation

  • Execute 'make' to compile executable command 'time-fre'.

Dependencies

Usage

  • time-fre SACfile t1 t2 segment_length fre_low fre_high output_file
parameter mean
SACfile name of SAC format file
t1 begin time of doing time-frequency analysis
t2 end time of doing time-frequency analysis
segment_length segment length of doing time-frequency
fre_low low limitation of corner frequency of doing time-frequency analysis
fre_high high limitation of corner frequency of doing time-frequency analysis
output_file file name of outputting results

Example

Go the directory "Example" and run with command below.

time-fre ft_BBR.BHZ.SAC 0 30000 50 0.005 0.2 out.txt

Run the plot shell script "plot.sh" and you can see it as below figure.

result result

Contribution