Dr. Grigorios Tsagkatakis is the PI for the CALCHAS project

Ming Hsieh Chair in Electrical and Computer Engineering-Electrophysics and Professor of Electrical and Computer Engineering, University of Southern California (USC), head of the Microwave Systems, Sensors and Imaging Lab (MiXIL)

Professor at the Department of Computer Science at the University of Crete. Head of the Signal Processing Laboratory (SPL), at Institute of Computer Science (ICS) of Foundation for Research & Technology - Hellas (FORTH)