Dr. Abdelkader MADDI was born in a beautiful small city which is called Meftah (Ex-Rivet) in 1966. He received the Bachelor degree of Mathematics from Meftah School in 1985. The Engineering Diploma in Electronics from the University of Blida 1 in 1990 and the Magister degree in 1997. The Doctorate Diploma in Electronics is obtained in February 2008 from National Polytechnic School of Algiers. In February 2021, He obtained the HDR from the University of Blida 1. Actually, He is a lecturer-researcher at Saad Dahlab University of Blida, and He is a member of LATSI laboratory with Faculty of Technology. The main research interests are the Signal processing, Adaptive control, Modelling and Identification systems.