Customer: Centre National d’Etudes Spatiales (CNES)

Programme: DTQTIS

Supply Chain: CNES > CS Group SPACE

Context

CS Group responsabilities for Absolute radiometric calibration - Performance assessment 3MI are as follows:

• Study, development

The features are as follows:

• Development of a simulator applying a calibration error to parasol measures and making a statistical analysis of the impact on radiometry. Application to sensitivity estimates :
• • Uncertainties on the orientation of polarizers
• • ignorance of the extinction rate of polarizers
• • Error on 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’s performance with regard to specifications

The processes for carrying out the project are:

• Study, regular meetings

Technical characteristics

The solution key points are as follows:

• Reference simulated images
• Inversion module of level L1 to measurement
• Instrumental radiometric model modification module
• Module of passage of measurements to data L1
• Images generated with calibration error
• Module for analyzing the differences between images

The main technologies used in this project are:

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