ARTS built-in documentation server
Workspace Method sensor_responseBackendFrequencySwitching
Frequency switching for a pure SSB reciever.
This function can be used for simulation of frequency switching.
That is, when the final spectrum is the difference of two spectra
shifted in frequency. The switching is performed by the LO, but
for a pure singel sideband reciever this is most easily simulated
by instead shifting the backend, as done here.
A strightforward frequency switching is modelled (no folding)
The channel positions for the first measurement cycle are
f_backend+df1, and for the second f_backend+df2. The first
measurement cycle is given the negive weight. That is, the output
is the spectrum for cycle2 minus the spectrum for cycle1.
Output frequency grids are set to f_backend.
Use sensor_responseFrequencySwitching for double sideband cases.
The method has the same general functionality as, and can replace,
Authors: Patrick Eriksson
|sensor_responseBackendFrequencySwitching( ||sensor_response, sensor_response_f, sensor_response_pol, sensor_response_dlos, sensor_response_f_grid, sensor_response_pol_grid, sensor_response_dlos_grid, f_backend, backend_channel_response, sensor_norm, df1, df2 )|