Missions

The Rosalind Franklin/Rover ExoMars mission scheduled to launch in 2028 will be the first mission to collect samples up to 2m depth from the Martian subsoil, looking for biosignatures.
WISDOM, a ground-penetrating radar of the mission's payload, an instrument developed at LATMOS, is a key instrument for detecting favourable sample collection drilling areas. It will also provide access to a third dimension of the geological interpretation of the landing site in synergy with the other payload instruments.
To support the project team, LATMOS is looking for a researcher in the preparation of the interpretation of WISDOM data to contribute to the development and validation of data processing tools and to ensure an operational role for members of the scientific team in the programming of scientific observations.

Activités

An accurate interpretation of the subsoil images acquired by WISDOM (scatter grams) is therefore essential to meet the objectives of the mission.
The researcher's activities will be to develop the data interpretation chain for Martian activities:
- Characterize from end to end the instrumental effects not to be confused with signals from the subsoil in the interpretation of radargrams
- Implement and validate advanced super-resolution techniques to achieve a thinner vertical resolution than the thickness of the subsoil samples taken by ExoMars
- Analyze with optimized resolution the basement of the future front landing site ExoMars using SHARAD radar (NASA/MRO mission) soundings
- Validate innovative ground-penetrating radar operations such as the detection of buried ice blocks, the measurement of differences in the dielectric properties of the subsoil between day and night, the "U-shape" profiles and the collaboration with a set of unique instruments (Ma_Miss, PanCam and CLUPI).
- use the processing codes developed for WISDOM on radar data currently in operation on Mars (RIMFAX and ROPER)

Compétences

In-depth knowledge of radar data processing
- Mastery of programming languages Matlab, python
- In-depth knowledge of instrumentation (physical measurements, metrology)
- General knowledge of electronics (components, electronic systems and functions) and spatial instrumentation, particularly in the fields of high-frequency electronics
- Documentation, writing skills
- Mastery of technical English in the field
- Good adaptability and responsiveness on the ground
- Good ability to interact with scientific and technical teams from other mission instruments.

Contexte de travail

The researcher will work in the WISDOM project team composed of scientists, engineers and technicians specialized in various fields (mechanical, electronics, etc.).
The LATMOS (ATMospheres and Space Observations Laboratory) is part of the Pierre Simon Laplace Institute (http://www.latmos.ipsl.fr) and is located on the Campus of the University of Versailles Saint Quentin en Yvelines (Guyancourt) and on the Pierre and Marie Curie Campus of Sorbonne University in Paris (Jussieu). The unit has about 220 people, including about sixty engineers, spread over the 2 sites of Guyancourt and Jussieu.
LATMOS is involved in more than 40 scientific missions or programs of Earth observations, planets or other bodies of the solar system, including in response to major climate questions.
The laboratory is therefore developing a strong instrumental activity for the development of scientific instrumentation integrating complex digital electronic systems.
The permanent staff competent to carry out these activities has been overworked for a few years, and requires the support of contract staff.

The position is located in a sector of the protection of scientific and technical potential (PPST), and therefore requires, in accordance with the regulations, that your arrival be authorized by the competent authority of the MESR.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

Participation in field campaigns, involving other instruments of the load load of the rover of the ExoMars mission, to acquire data with a prototype of the WISDOM instrument