报告地点：教学行政楼706会议室
报告时间：2023-10-27 从15:00到16:30
报告人：陈武（香港理工大学）
报告人简介：
Professor Wu Chen received his BSc in Physics from University of Science and Technology of China, MSc from the institute of Geodesy and Geophysics, Chinese Academy of Science, and PhD from University of Newcastle. He is currently professor and head of the department at the Department of Land Surveying and Geoinformatics, the Hong Kong Polytechnic University. He has been working on GNSS related research for more than 30 years. In recent years, his research was mainly concentrated on solving PNT problems related to urban and low latitude region, such seamless navigation and low latitude ionospheric effects on GNSS. In urban PNT studies, he tries to solve some of key problems in urban environment, such as satellite signal shadowing, multipath. He has also been working on GNSS reflectometry for various applications, including deformation monitoring and pass radar applications.
报告题目：GNSS Remote Sensing applications
报告内容简介：
GNSS technologies have been widely applied for various Positioning, Navigation, and Timing (PNT) applications. To achieve better PNT accuracy, various algorithms/models have been developed on to mitigate diversified errors in GNSS ranging measurements, such as ionospheric and tropospheric refractions, multipath, and site related motions. On the other hands, these corrections provide vital information of the media, which can be extracted from GNSS measurements, known as GNSS remote sensing. In this presentation, the general principles of GNSS remote sensing technologies will be reviewed. Particularly, how to use the GNSS reflected signals for deformation monitoring and passive radar will be analyzed in details. Furthermore, GNSS-R technologies can be extended to a wider class of applications using signal of opportunities with diversified radio signal sources.