Dachen Peng is a Postdoctoral Fellow in the Department of Land Surveying and Geospatial Science (LSGS), The Hong Kong Polytechnic University (PolyU). He received his Bachelor's degree in Mechanical Engineering from Xi'an Jiaotong University and his Ph.D. in Physics from Sun Yat-sen University. His research interests include LEO satellite precise orbit determination (POD) based on GNSS data, advanced research on LEO satellite dynamic modeling, and orbit maneuver thrust inversion.