Customer: Centre National d’Etudes Spatiales (CNES)

Programme: DTQTIS

Supply Chain: CNES > CS Group SPACE

Context

CS Group responsabilities for Absolute radiometric calibration - 3MI performance review are as follows:

• Study, development

The features are as follows:

• Development of a simulator applying a calibration error to PARASOL measurements and carrying out a statistical analysis of the impact on radiometry. Application to sensitivity estimates :
• • uncertainties about the orientation of the polarizers
• • ignorance of the extinction rate of polarizers
• • error in the relative transmission between channels of a triplet of polarizers
• • HF equalization noise and radiometric noise
• • non-linearity error

Project implementation

The project objectives are as follows:

• Analyze 3MI performance against specifications

The processes for carrying out the project are:

• Study, regular meetings

Technical characteristics

The solution key points are as follows:

• Reference simulated images
• L1 level inversion module at measurement
• Instrumental Radiometric Model modification module
• Module for passing measurements to L1 data
• Images generated with calibration error
• Image gap analysis module

The main technologies used in this project are:

Domain	Technology(ies)
Operating System(s)	Cluster Linux HAL
Programming language(s)	Python