Estimation modale haute résolution

The standard modal analysis technique makes use of the Fouri er transform which projects the signal on a basis of sinusoids. When the signal components have a fast decay rate(strong modal damping), the intrinsically limited resolution of the Fourier transform makes it inefficient to e stimate damped modes with close frequencies. High resolution techniques (ESPRIT algorithm), which project t he signal on a basis of exponentially damped sinusoids, offer an interesting alternative. In order to evaluate the u ncertainties on the results, we propose an additional procedure based on simulation (Monte-Carlo type method). T