gdas.epower.excess_power ¶
-
gdas.epower.
excess_power
( ts_data , band = None , fmin = 0 , fmax = None , impulse = False , make_plot = False , max_duration = None , nchans = 256 , output = None , psd_estimation = 'median-mean' , segment_length = 60 , segment_stride = 30 , station = 'station-name' , tile_fap = 1e-07 , verbose = True , window_fraction = 0 , wtype = 'tukey' ) [source] ¶ -
Perform excess-power search analysis on magnetic field data. This method will produce a bunch of time-frequency plots for every tile duration and bandwidth analysed as well as a XML file identifying all the triggers found in the selected data within the user-defined time range.
- Parameters
-
- ts_data TimeSeries
-
Time Series from magnetic field data
- segment_length float
-
Length of each segment in seconds
- segment_stride float
-
Separation between 2 consecutive segments in seconds
- psd_estimation string
-
Average method
- window_fraction float
-
Withening window fraction
- tile_fap float
-
Tile false alarm probability threshold in Gaussian noise.
- nchans int
-
Total number of channels
- band float
-
Channel bandwidth
- fmin float
-
Lowest frequency of the filter bank.
- fmax float
-
Highest frequency of the filter bank
Examples
The program can be ran as an executable by using the
gdas
command line as follows:gdas excesspower --station fribourg01 \ --start-time 2018-06-15-09 --end-time 2018-06-15-10 \ --data-path ../GNOMEDrive/gnome/serverdata/ \ --tile-fap 1e-7 --output trigger_map