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TRANSFORM WAVE

        [CALIBRATE\]TRANSFORM WAVE  FileIn FileOut Direction

    Compute a Wavelet Transform of FileIn along the Frequency/Velocity axis.
    Direction indicates if a direct or inverse Wavelet transformation is ap-
    plied.

    If Direction = 0, the number of channels is extended to the nearest pow-
    er of 2, and a direct wavelet transform is performed

    If  Direction  >  0, an inverse wavelet transform is performed (that as-
    sumes a power of 2 in number of channels in FileIn) and the first Direc-
    tion channels only are kept in FileOut.

    Thus,  for a data cube of Nc channels,  TRANSFORM WAVE In Out 0 followed
    by TRANSFORM WAVE Out In Nc re-creates the original data.


Gildas manager 2023-06-01