Articles techniques et présentations

In this paper a methodology for calculating the infrared signature of complex objects is presented. The transient thermal analysis allows us to evaluate the temperature distribution on the investigated object, pointing out which parts tend to be warmer. These temperature values are handled in the post processing phase in order to evaluate the zero range radiance distribution and the radiance of the target filtered by the Earth’s atmosphere, according to the observer view direction. The comparison of the object radiance with the background one allows us to evaluate the IR (Infrared) signature contrast.