eradiate.spectral.DeltaSRF¶

class eradiate.spectral.DeltaSRF(wavelengths)¶

A spectral response function consisting of multiple Dirac delta distributions.

This SRF conventionally always evaluates to 0.

Parameters:: wavelengths (array-like or quantity) – An array of wavelengths specifying the translation wavelength of each Dirac delta. Wavelength values are positive and unique. When a single value is provided, it is converted to a 1-element array. Wavelength are deduplicated and sorted by ascending values. Unit-enabled field (default: ucc["wavelength"]).
Fields:: wavelengths (quantity) – An array of wavelengths specifying the translation wavelength of each Dirac delta.

static convert(value)¶

Converter for the Measure.srf field.

Notes

Supported conversion protocols:

dict: Dispatch to subclass based on ‘type’ entry, then pass dictionary to constructor as keyword arguments.
Dataset, DataArray: Call BandSRF.from_dataarray().
Path-like: Attempt loading a dataset from the hard drive, then call BandSRF.from_dataarray().
str: Perform a NetCDF file lookup in the SRF database and load it.

Anything else will pass through this converter without modification.

eval(w)¶

Evaluate the spectral response function for one or several wavelengths. Evaluation is vectorized.

Parameters:: w (array-like) – One or several wavelengths at which the SRF is evaluated.
Returns:: quantity – The returned value as the same shape as w.