Instrument2Scaleogram

This program computes the wavelet transform of a time series up to a maxLevel. The scalogram is written to a matrix which can be plotted by using a gridded layer in PlotGraph. Individual detail levels can be written to matrix files by setting outputfileLevels. The data column to be decomposed must be set by selectDataField.

The wavelet transform is implemented as a filter bank, so care should be taken when the input contains data gaps. Low/highpass wavelet filters are applied in forward and backward direction, input is padded symmetric. See digitalFilter for details.

instrument2Scaleogram
Figure: GRACE range-rate residuals of one month.

NameTypeAnnotation
outputfileScaleogram
filenamematrix columns: mjd, level, value
outputfileLevels
filenameuse loopLevel as variable
inputfileInstrument
filename
inputfileWavelet
filenamewavelet coefficients
selectDataField
uintdata column to transform
maxLevel
uintmaximum level of decomposition (default: full)