GNSS System Engineer and Jamming
il y a 2 semaines
Once confined to very specific applications, satellite navigation systems, also known as GNSS (Global Navigation Satellite Systems) , are now widespread and can be found in numerous devices, including some sensitive systems such as autonomous vehicles and military applications. Alongside the rapid expansion of this technology, the frequency and complexity of attacks against these systems have also increased through techniques known as jamming and spoofing. To mitigate equipment vulnerabilities, most receivers incorporate algorithms to detect such attacks by analyzing various signals and metrics provided by the system.
The LS2PR laboratory at LETI is developing an innovative approach to address this issue using artificial intelligence (AI) techniques to detect and classify such attacks with very short response times. However, the effectiveness of these techniques depends on the quality of the database used for training, which is further complicated by the difficulty of implementing attacks involving complex equipment.
Leveraging the knowledge of CEA and its partner teams, the candidate should:
- Conduct a state-of-the-art review of different types of GNSS attacks.
- Acquire or enhance their knowledge of the use of relevant systems (GNSS receivers, signal generators like Skydel) .
- Define a testing protocol that considers feasibility constraints and the learning objectives (learning biases, etc.) .
- Implement the testing setup, including equipment setup, configuration, and programming.
- Collect data.
- Perform post-processing and statistical analysis of the collected data to validate their suitability for machine learning.
- Prepare reports and participate in project meetings.
- Publish their work in high-quality conferences and journals
Profil recherché
- Metrology and Field Test Engineer
- In-depth knowledge of GNSS systems and radiofrequency signal emulation
- Definition and implementation of a database
- Post-processing and data analysis
- Programming language: Python, Matlab
Présentation de Cea
Le CEA est un acteur majeur de la recherche, au service des citoyens, de l'économie et de l'Etat.
Il apporte des solutions concrètes à leurs besoins dans quatre domaines principaux : transition énergétique, transition numérique, technologies pour la médecine du futur, défense et sécurité sur un socle de recherche fondamentale. Le CEA s'engage depuis plus de 75 ans au service de la souveraineté scientifique, technologique et industrielle de la France et de l'Europe pour un présent et un avenir mieux maîtrisés et plus sûrs.
Implanté au cœur des territoires équipés de très grandes infrastructures de recherche, le CEA dispose d'un large éventail de partenaires académiques et industriels en France, en Europe et à l'international.
Les collaboratrices et collaborateurs du CEA partagent trois valeurs fondamentales :
• La conscience des responsabilités
• La coopération
• La curiosité
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