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Workspace Method jacobianAddPolyfit
Description
Includes polynomial baseline fit in the Jacobian. This method deals with retrieval of disturbances of the spectra that can be described by an addidative term, a baseline off-set. The baseline off-set is here modelled as a polynomial. The polynomial spans the complete frequency range spanned by sensor_response_f_grid and the method should only of interest for cases with no frequency gap in the spectra. The default assumption is that the off-set differs between all spectra, but it can also be assumed that the off-set is common for all e.g. line-of-sights.
Authors: Patrick Eriksson
Synopsis
| jacobianAddPolyfit( | jacobian_quantities, jacobian_agenda, sensor_response_pol_grid, sensor_response_za_grid, sensor_pos, poly_order, no_pol_variation, no_los_variation, no_mblock_variation ) |
Variables
| OUT+IN | jacobian_quantities | (ArrayOfRetrievalQuantity) | The retrieval quantities in the Jacobian matrix. |
| OUT+IN | jacobian_agenda | (Agenda) | See agendas.cc. |
| IN | sensor_response_pol_grid | (ArrayOfIndex) | The "polarisation grid" associated with sensor_response. |
| IN | sensor_response_za_grid | (Vector) | The zenith angle grid associated with sensor_response. |
| IN | sensor_pos | (Matrix) | The sensor position for each measurement block. |
| GIN | poly_order | (Index) | Polynomial order to use for the fit. |
| GIN | no_pol_variation | (Index, Default: 0) | Set to 1 if the baseline off-set is the same for all Stokes components. |
| GIN | no_los_variation | (Index, Default: 0) | Set to 1 if the baseline off-set is the same for all line-of-sights (inside each measurement block). |
| GIN | no_mblock_variation | (Index, Default: 0) | Set to 1 if the baseline off-set is the same for all measurement blocks. |