Sang Van Doan is now working at the Radar Technology, Vietnam naval academy, Vietnam. He worked at Networked Systems Lab, ICT Convergence Research Center, Kumoh National Institute of Technology, Gumi, South Korea from September 2019 to August 2020. His research focuses on radar & sonar technology, Electronic Engineering, and Communication Engineering, Electronic Warfare. Now, he is working on DOA estimation techniques, Waveform, and target classification and recognition; using machine learning and deep learning for signal processing.