Academic Staff

PhD, BEng

Area of Specialization
Satellite positioning and navigation; GNSS signal processing; Low Earth orbit satellite positioning, navigation, and timing; Cellular signal positioning; GNSS radio frequency interference detection and localization; Wireless communications

Short Description
Dr Xu is currently Assistant Professor in the Department of Aeronautical and Aviation Engineering (AAE), The Hong Kong Polytechnic University. He received his BEng degree from Nanjing University of Science and Technology, China, in 2012, and the PhD degree in Control Science and Engineering from the same university in 2018. Prior to his current position, he was Postdoctoral Fellow and Research Assistant Professor with AAE. He visited The University of New South Wales, Australia, and Nanyang Technological University, Singapore, in 2023, as Visiting Scholar. He has been awarded several research grants including National Natural Science Foundation of China (NSFC) Young Scientists Fund, Guangdong Basic and Applied Basic Research Fund, State Key Laboratory of Satellite Navigation System and Equipment Technology Open Fund, etc. He also leads research collaborative projects with relevant industries.

Selected Publications

1. J. Fang, J. Yue, B. Xu and L.-T. Hsu, “A post-correlation graphical way for continuous GNSS spoofing detection,” Measurement, vol. 216, 112974, 3 May 2023.
2. A. Dey, B. Xu, X. Lu and N. Sharma, “GNSS Code Multipath Time-frequency Analysis Using Wavelet-based Synchrosqueezing Transform in Urban Environments,” IEEE Geoscience and Remote Sensing Letters, vol. 19, pp. 1-5, 2022.
3. J. Yue, B. Xu and L.-T. Hsu, “Data Denoising Based on Hadamard Matrix Transformation and Rayleigh Quotient Maximization: Application to GNSS Signal Classification,” IEEE Transactions on Instrumentation and Measurement, vol. 71, pp. 1-11, 2022.
4. C. Jiang, Y. Chen, B. Xu, J. Jia, H. Sun, C. Chen, Z. Duan and J. Hyyppä, “Vector Tracking Based on Factor Graph Optimization for GNSS NLOS Bias Estimation and Correction,” IEEE Internet of Things Journal, vol. 9, no. 17, pp. 16209-16221, 2022.
5. A. Dey, K. Iyer, B. Xu, N. Sharma and L.-T Hsu, “Carrier-Aided Dual Frequency Vectorized Tracking Architecture for NavIC Signals,” IEEE Transactions on Instrumentation and Measurement, vol. 71, pp. 1-13, 2022.
6. C. Jiang, B. Xu and L.-T. Hsu, “Probabilistic Approach to Detect and Correct GNSS NLOS Signals Using an Augmented State Vector in the Extended Kalman Filter,” GPS Solutions, vol. 25, Art no.72, pp. 1-14, 2021.
7. B. Xu, Q. Jia and L.-T. Hsu, “Vector Tracking Loop-Based GNSS NLOS Detection and Correction: Algorithm Design and Performance Analysis,” IEEE Transactions on Instrumentation and Measurement, vol. 69, no. 7, pp. 4604-4619, July 2020.
8. B. Xu and L.-T. Hsu, “Open-source MATLAB code for GPS vector tracking on a software-defined receiver,” GPS Solutions, vol. 23, Art no. 46, 2019.
9. B. Xu, Q. Jia, Y. Luo and L.-T. Hsu, “Intelligent GPS L1 LOS/Multipath/NLOS Classifiers Based on Correlator-, RINEX- and NMEA-Level Measurements,” Remote Sensing, vol. 11, no. 16, pp. 1-21, 2019.
10. B. Xu and L. Dou, “GNSS IF Signal Simulation Considering Oscillator Phase Noise,” Journal of Navigation, vol. 71, no. 4, pp. 805-820, 2018.