Manuel Duarte Ortigueira received an Electrical Engineering degree at Instituto Superior Técnico, Universidade Técnica de Lisboa in April 1975 and Ph.D. and Habilitation degrees at the same Institution in 1984 and 1991, respectively. Nowadays, he is Associate Professor with Habilitation (retired) at the Electrical Engineering Department of the Faculty of Sciences and Technology of Nova University of Lisbon. He was professor at Instituto Superior Técnico and Escola Náutica Infante D. Henrique. He published 3 books on Digital Signal Processing, Fractional Calculus, and Fractional Signals and Systems; over 180 papers in journals and conferences with revision; and has 2 registered patents. His research activity started in 1977 at Centro de Análise e Processamento de Sinais, continued at Instituto de Engenharia de Sistemas e Computadores (INESC), where he was with the Digital Signal Processing and Signal Processing Systems groups, and since 1997 at Instituto de Novas Tecnologias (UNINOVA), where he is with the Signal Processing group of Center of Technology and Systems. He is regular reviewer of several international journals and member of the scientific committee of several international journals and conferences. Nowadays, his main scientific interests are Fractional Signal Processing, Digital Signal Processing, and Biomedical Signal Processing.