Next: 21.6 UV_DETECT Up: 21.5 SPECTRAL_CLEAN Previous: 21.5.3 MULTI Contents Index
Clean a Wavelet Transform along the spectral axis of the DIRTY cube, and transform back the Clean components to retrieve the per-channel Clean components. The final Clean image is produced using UV_RESTORE.
The noise level is not the same for the wavelet components of the data cube: this is taken into account by the method to Clean each wavelet image plane to its proper noise level.
Apart for the time required by the Wavelet transform, the method has a comparable speed to a standard Clean.