[1] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Bundoora, Vic, Australia
[2] W Virginia Univ, Benjamin M Statler Coll Engn & Mineral Resources, Dept Mech & Aerosp Engn MAE, Morgantown, WV 26506 USA
[3] Swinburne Univ Technol, Ctr Microphoton H74, Hawthorn, Vic 3122, Australia
[4] Univ Parma, Dept Informat Engn, I-43100 Parma, Italy