Title: Multi-scale Deformation Measurement by Radars for Geological Disaster Sensing 

Speaker: Assoc. Prof. Yuanhao Li, Beijing Institute of Technology

Time: 17: 30-18: 00, December 5, 2023

Place: Liangjiang Grand Ballroom

Abstract: Geological hazards such as earthquakes, landslides, and ground subsidence pose a serious threat to the safety of people's lives and properties in China. Deformation measurement is an important approach to achieving monitoring and early warning for geological hazards, which can help reduce the occurrence of disasters. Radars are the only sensors capable of achieving daylight-independent, all-weather surface deformation measurement. This speech focuses on multi-scale deformation measurement for geological disaster sensing using joint observation from multistatic spaceborne Synthetic Aperture Radar (SAR), Unmanned Aerial Vehicle based SAR, GNSS-based SAR, and ground-based Multi-Input-Multi-Output (MIMO) radar. The latest key technique progress made by the Beijing Institute of Technology in these radars, including imaging, error correction, three-dimensional deformation retrieval, radar instrument developments, etc. are presented. In particular, various applications of these radar systems in safety monitoring and disaster reduction of landslides around mines/dams/railways/power lines slopes, are discussed.

Biography: Yuanhao Li received the Ph.D. degree in Information and Communication Engineering from Beijing Institute of Technology (BIT), Beijing, China, in 2018. From 2016 to 2017, he worked as a visiting researcher with the Dipartimento di Elettronica e Informazione, Politecnico di Milano (PoliMi), Italy. In 2018, he became a post-doctoral researcher of the Department of Geoscience and Remote Sensing, Delft University of Technology (TU Delft), Delft, The Netherlands, where he was involved in the European Space Agency (ESA) 10th Earth Explore mission (The Harmony mission) and the ESA Alticubes altimeter constellation project. In 2021, he joined the School of Information and Electronics, BIT, currently he is an associate professor. His research interests include distributed spaceborne Synthetic Aperture Radar (SAR) systems, interferometric SAR technique, and radar altimeter constellations. Dr. Li was a recipient of the Chinese Institute of Electronics Youth Conference Excellent Paper Award in 2014.