pybsm.radiance.functional

The Python Based Sensor Model (pyBSM) is a collection of electro-optical camera modeling functions.

Developed by the Air Force Research Laboratory, Sensors Directorate.

Author citation: LeMaster, Daniel A.; Eismann, Michael T., “pyBSM: A Python package for modeling imaging systems”, Proc. SPIE 10204 (2017)

Distribution A. Approved for public release. Public release approval for version 0.0: 88ABW-2017-3101 Public release approval for version 0.1: 88ABW-2018-5226

Maintainer: Kitware, Inc. <nrtk@kitware.com>

This module deals with all things related to radiance, including black body spectral emission calculations, spectral atmospheric absorption, and conversion of radiance to photons. Anything material with a non-zero temperature emits electromagnetic radiation according to Planck’s law and its temperature, spectral emissivity.

Functions

`at_focal_plane_irradiance`	Converts pupil plane radiance to focal plane irradiance for an extended source.
`blackbody_radiance`	Calculates blackbody spectral radiance.
`check_well_fill`	Check to see if the total collected photoelectrons are greater than the desired maximum well fill.
`cold_shield_self_emission`	Represents spectral irradiance on the FPA due to emissions from the walls of the dewar itself.
`cold_stop_self_emission`	For infrared systems, this term represents spectral irradiance emitted by the cold stop on to the FPA.
`focal_plane_integrated_irradiance`	IBSM Equation 3-34.
`giqe_radiance`	This function provides target and background spectral radiance as defined by the GIQE.
`optics_self_emission`	This term represents spectral irradiance emitted by the optics (but not the cold stop) on to the FPA.
`photon_detection_rate`	IBSM Equation 3-42 with dark current, integration time, and tdi separated out.
`photon_detector_SNR`	Calculates extended target contrast SNR for semiconductor-based photon detector systems.
`reflectance_to_photoelectrons`	Provides a mapping between reflectance on the ground and photoelectrons collected in the sensor well.
`resample_by_wavelength`	Resamples arrays that are input as a function of wavelength.
`signal_rate`	For semiconductor-based detectors, returns the signal rate generated at the output as well as other quantities.
`total_radiance`	Calculates total spectral radiance at the aperture for a object of interest.