Howtosignalprocessing
What is continuum fitting?
Continuum Fitting
While the line-fitting machinery can be used to fit continuua at the same time as models, often it is convenient to subtract or normalize a spectrum by its continuum before other processing is done. specutils provides some convenience functions to perform exactly this task. An example is shown below.
What is spectral fitting?
Search Results. Use Spectral Feature Fitting (SFF) to compare the fit of image spectra to reference spectra using a least-squares technique. SFF is an absorption-feature-based methodology. The reference spectra are scaled to match the image spectra after the continuum is removed from both datasets.
