Wavelet denoising for postprocessing of a 2D Particle - In - Cell code Salimou Gassama, Éric Sonnendrücker, Kai Schneider, Marie Farge and Margarete O. Domingues ESAIM: Proc., 16 (2007) 195-210 Published online: 02 March 2007 DOI: 10.1051/proc:2007013