Subspace Identiļ¬cation of Hammerstein Systems using Least Squares Support Vector Machines Ivan Goethals, Kristiaan Pelckmans, Johan A.K. Suykens, Bart De Moor K.U. Leuven, ESAT-SCD-SISTA Kasteelpark Arenberg 10 B-3001 Leuven (Heverlee), Belgium Tel: 32/16/32 86 58 - Fax: 32/16/32 19 70 Email: ivan.goethals@esat.kuleuven.ac.be June 2004