CARLOS AGUILAR-IBANEZ was born in Tuxpan, Veracruz, Mexico. He graduated in physics from the Higher School of Physics and Mathematics, National Polytechnic Institute (IPN), Mexico City, in 1990. He received the M.S. degree in electrical engineering from the Research Center and Advanced Studies of the IPN (Cinvestav-IPN), in 1994, and the Ph.D. degree in automatic control, in 1999. Since 1999, he has been a Researcher with the Center of Computing Research of the IPN (CIC-IPN). As of 2000, he belongs to the National System of Researchers (SNI), Mexico. His research interests include nonlinear systems, system identification, observers, automatic control, and chaos theory.