Modeling of the radar cross section from the full-wave method of moments

Nantes Université; France; On-site; EUR 42,000 - 54,000; Full time

Job summary

Nantes Université recherche un chercheur en informatique/ingénierie informatique pour développer des méthodes de diffusion électromagnétique et les valider sur des surfaces et objets 3D en Matlab, en lien avec des applications en radar et télédétection.

Le candidat doit posséder un doctorat et démontrer une expertise en modélisation EM, écriture d’articles et travail autonome en équipe dans un cadre universitaire permanent.

Qualifications

• Maitrise approfondie de la diffusion électromagnétique.
• Maîtrise de Matlab pour les simulations et l’implémentation.
• Capacité à écrire un article dans la langue anglaise.
• Autonomie dans la recherche et l’expérimentation.
• Esprit d’équipe et collaboration.
• Rigueur méthodologique et souci du détail.

Responsibilities

• Explorer l’utilisation de l’imposition des conditions aux limites (IBC) et l’approximation de Leontovich.
• Valider l’équation intégrale PMCHWT via la méthode MoM par l’approche Galerkin.
• Développer des programmes Matlab pour calculer le champ diffusé lointain sur des objets diélectriques.
• Étendre les méthodes aux objets revêtus avec des conditions aux limites d’impédance de hautes ordres.

Skills

EM scattering knowledge

Matlab

English writing

Autonomie

Team spirit

Rigueur

Education

PhD in computer science or computer engineering

Tools

MatLab

Job description

Organisation/Company Nantes Université Research Field Computer science Researcher Profile Recognised Researcher (R2) Application Deadline 19 Nov 2026 - 00:00 (UTC) Type of Contract Permanent Job Status Full-time Hours Per Week 35.0 Is the job funded through the EU Research Framework Programme? Not funded by a EU programme Reference Number fujv5rrem2 Is the Job related to staff position within a Research Infrastructure? No

Offer Description

Mission

The calculation of the scattered field from a manufactured object or a rough surface finds applications in remote sensing and Radar stealth. Asymptotic/approximated methods can be developed to solve this issue. In comparison to a full-wave method, like the method of moments (MoM), they are able to provide rapid results, but their precision is not well-known. On the other hand, the MoM gives “exact” results, but the computer resources need to solve the resulting linear system can be prohibitive. In addition, the increasing of the dielectric permittivity significantly increases the size of the linear system. A means to solve this issue is to apply the impedance boundary condition or Leontovich approximation. Firstly, the selected candidate will investigate this approach, which will be validated from the PMCHWT (Poggio Miller-Chang-Harrington-Wu-Tsai) surface integral equation solved by the Galerkin MoM Rao Wilton-Glisson basis functions. For a single realization of the sea surface, the monostatic scattered far-field will be computed from IBC and compared with PMCHWT versus the incidence angle and the wind speed. The program will be written in MatLab. Secondly, in the same way, to treat the electromagnetic scattering from an object coated with a thin layer, the Higher Order Impedance Boundary Condition combined to the MoM will be implemented.

Profil

PhD in computer science or computer engineering - Eléments du dossier de candidature (lettre de motivation, CV, travaux, etc.) : A CV and a cover letter. In the cover letter, the candidate must demonstrate in-depth knowledge of scattering electromagnetic modeling, particularly regarding the application of the method of moments to a three-dimensional dielectric object. Compétences et qualifications requises :

• A deep knowledge in electromagnetic scattering
• Program in MatLab
• Write a Journal article in English
• Autonomy
• Team spirit
• Rigor