To perform multi-sensors simulations, the French DGA/DET (Directorate for Technical Evaluation of the French
Ministry of Defense) uses CHORALE (simulated Optronic Acoustic Radar battlefield). CHORALE enables the user to
create virtual and realistic multi spectral 3D scenes, and generates the physical signal received by one or several sensors,
typically an IR sensor or an acoustic sensor. This article presents different kinds of scenario such as desert, urban, campaign place to evaluate intelligent artillery ammunition. The ammunition described has to detect thermal contrast above a target area for the detection capability and firing decision. The scene is as realistic as possible to give to french army good parameters according to their request in a
typical operational scenario. That includes background with trees, houses, roads, fields, targets, dunes, with different
materials such as grass, sand, rock, wood, concrete... All object in the 3D scene is characterized by optronic parameters
used by CHORALE Workbench. The signal provided by this workbench is adapted by AMOCO workbench which allows defining sensor technology. Then a process unit provides the firing decision and the lethality data from the target which has been reached. Each tool is explained to understand the physics phenomena in the scene to take into account atmospheric transmission, radiative parameters of objects and counter-measure devices. Finally, this paper shows results by coupling the operational scenario with sensor model to do a global simulation in
order to determine global performances of artillery ammunition.