Welcome to PolyU PNT Signal Processing Team website

I am currently an Assistant Professor in the Department of Aeronautical and Aviation Engineering at The Hong Kong Polytechnic University. I received my BEng degree from Nanjing University of Science and Technology, China, in 2012, and my PhD degree in Control Science and Engineering from the same university in 2018. Before my current position, I held roles as a Postdoctoral Fellow and Research Assistant Professor in the AAE department. I am interested in positioning, navigation, and timing (PNT) research, specifically focusing on PNT signal processing, which includes GNSS, cellular, low Earth orbit satellite signals, and other signals. Our research has been recognized with several grants, such as the National Natural Science Foundation of China (NSFC) Young Scientists Fund, the Guangdong Basic and Applied Basic Research Fund, and the State Key Laboratory of Satellite Navigation System and Equipment Technology Open Fund, and so on. Additionally, I lead collaborative research projects with industry partners.

I am looking for passionate new PhD students, Postdocs, and Master students! If you have a strong interest in my research area, please send me 1) a statement about what you plan to do with me, 2) your CV, 3) transcripts, and 4) any other supporting documents.

News

1 May 2025

PhD student, Sijia Li, presented our research on spoofing mitigation based on 5G direct position estimation for precise localization in dense urban areas at the IEEE/ION PLANS 2025 conference.

30 April 2025

PhD student, Jingxiaotao Fang, presented our research on spoofing mitigation based on Doppler frequency at the IEEE/ION PLANS 2025 conference. We estimate the authentic signal Doppler frequency based on receiver Doppler measurements under spoofing. The estimated Doppler frequency is then used to correct pseudorange measurements.

15 Sep 2023

PhD student, Sergio, presented our research on GNSS DPE at ION GNSS+ 2023. We experimentally evaluate DPE’s performance and show its model mismatch problem!

28 April 2023

We extended our work on GPS spoofing detection, which was presented at ION ITM 2023. The extended version has been accepted by the journal Measurement. Will be online soon!