⛪About me

Hello, my name is You Xu. I am currently a Senior Research Officer with the School of Computer Science and Electronic Engineering (CSEE), University of Essex, Colchester, UK. I received my Ph.D. degree in information and communication engineering from Huazhong University of Science and Technology in 2025.

At the University of Essex, I am currently working under the supervision of Prof. Zilong Liu. During my Ph.D. study, I was supervised by Prof. Lixia Xiao and IEEE Fellow Prof. Tao Jiang. I was also a Visiting Student Researcher at the University of Macau from December 2021 to March 2022, where I worked with Prof. Shaodan Ma in The State Key Laboratory of Internet of Things for Smart City.

My research interests include signal processing for wireless sensing and communications, with a focus on non-line-of-sight sensing and localization, RF/mmWave imaging, sparse Bayesian inference, parameter estimation, doubly dispersive and wideband channel analysis, affine frequency division multiplexing (AFDM) waveform design, and AFDM-based integrated sensing and communications.

🖥️Research Statement

My research centers on multipath signal processing for wireless sensing and communications. Multipath echoes carry rich environmental information for reconstructing non-line-of-sight (NLOS) targets, while in high-mobility communications they form doubly dispersive channels that new waveforms must address. I use sparse reconstruction, Bayesian inference, and parameter estimation to exploit multipath structure in both regimes, with the long-term goal of developing affine frequency division multiplexing (AFDM)-based integrated sensing and communication systems for complex environments.

• NLOS Sensing and RF Imaging: Characterize rough-relay-surface scattering and develop compressed-sensing and Bayesian sparse-recovery methods for high-fidelity reconstruction of hidden-target location, velocity, and electromagnetic properties.
• Multipath Parameter Estimation: Design statistical estimators for joint delay, Doppler, and scattering-parameter extraction under cluttered NLOS conditions.
• AFDM Waveform and Channel Design: Establish chirp-parameter rules for full diversity in doubly dispersive channels and extend AFDM toward wideband delay-scale channels.
• AFDM Channel Estimation and ISAC: Develop sparse Bayesian algorithms for joint phase-noise compensation and off-grid channel estimation, while characterizing sensing performance through ambiguity-function and Cramér–Rao-bound analysis.

🔥 News

• 2026.07: 🎉 Joined the University of Essex as a Senior Research Officer.
• 2026: 🎉 One paper accepted at IEEE PIMRC 2026.
• 2026: 🎉 Our collaborative work on mmWave NLOS sensing was published in IEEE Aerospace and Electronic Systems Magazine.
• 2025: 🎉 Our collaborative paper was accepted at IEEE GLOBECOM 2025.
• 2025.08: 🎉 Pass the final defense at HUST!
• 2025.08: 🎉 We have one paper accepted at GlobeCom 2025.
• 2025.06: 🎉 We have one paper accepted at PIMRC 2025.
• 2025.05: 🎉 We have one paper accepted at IEEE SPL.
• 2024.12: 🎉 We have one paper accepted at IEEE TSP.

📝 Publications

📡 Signal Processing for mmWave Sensing

IEEE TSP 2024

Double Sparse Structure-enhanced mmWave NLOS Imaging under Multiangle Relay Surface
You Xu, Guanghua Liu, Xiaotong Lu, Chao Xie, Lixia Xiao, Tao Jiang
IEEE Transactions on Signal Processing (TSP) 2024

Project

• Method: Sparse Method.
• Academic Contribution:

IEEE IoTJ 2023

Leveraging Rough-Relay-Surface Scattering for Non-Line-of-Sight mmWave Radar Sensing
You Xu, Guanghua Liu, Tao Jiang
IEEE Internet of Things Journal (IoTJ) 2023

Project

• Method: Tensor.
• Academic Contribution:

IEEE SPL 2025

Bayesian Compressive Sensing for NLOS mmWave Imaging under Imprecisely Multiangle Surfaces \ You Xu, Guanghua Liu, Xiaotong Lu, Lixia Xiao, Tao Jiang
IEEE Signal Processing Letters (SPL) 2025

Project

• Method: Bayesian Compressive Sensing.
• Academic Contribution:

IEEE PIMRC 2025

Metasurface-Aided near-Field mmWave Sparse Imaging Via Fused Binary Compressive Sensing
You Xu, Guanghua Liu, Huaijin Zhang. Xiaotong Lu, Lixia Xiao, Tao Jiang
IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) (TBC) 2025

Project | |

• Method: MIMO Precoding.
• Academic Contribution:

• IEEE A&E Systems Magazine 2026 MmWave NLOS Sensing under Rough Relay Surface: Challenges and Solutions, Guanghua Liu, Xiaotong Lu, You Xu, Haoran Yuan.
• NEWC 2024 Anti-spoofing Jamming Radar System based on Adaptive Waveform Selection, You Xu, Chao Xie, Xiaotong Lu, Guanghua Liu, Tao Jiang.
• IEEE TASE 2025 A Radar System with Adaptive Waveform Selection against Dynamic Spoofing Attacks, Chao Xie, Guanghua Liu, You Xu, Xiaotong Lu, Tao Jiang.
• IEEE SL 2024 Virtual Multiview Fusion for Millimeter Wave Radar Point Cloud Generation, Xiaotong Lu, Guanghua Liu, You Xu, Chao Xie, Lixia Xiao, Tao Jiang.
• IEEE GLOBECOM 2025 Virtual Multiview Fusion for mmWave Imaging Assisted by Multiple Metasurfaces, Xiaotong Lu, Guanghua Liu, You Xu, Haoran Yuan.
• IEEE T-AES (under review) Adaptive Decision Framework for NLOS Radar Relay Surface Scattering Classification via Deep Learning, Haoran Yuan, Guanghua Liu, You Xu, Xiaotong Lu.
• IEEE GLOBECOM 2026 (under review) Scattering-Aware Adaptive Localization and Tracking for NLOS Radar in Π-Shaped Streets, Haoran Yuan, Guanghua Liu, You Xu, Xiaotong Lu, Wei Xu.

📶 Signal Processing for mmWave/MIMO Communications

IEEE TBC 2021

An Imaginary Interference-Free Method for MIMO Precoding in FBMC/OQAM Systems
You Xu, Zhongxiu Feng, Jing Zou, Dejin Kong, Yu Xin, Tao Jiang
IEEE Transactions on Broadcasting (TBC) 2021

• Project
• Method: MIMO Precoding.
• Academic Contribution:

• IEEE PIMRC 2026 Joint Phase Noise and Off-Grid Channel Estimation for AFDM Systems via Sparse Bayesian Learning, You Xu, Huaijin Zhang, Lixia Xiao, Guanghua Liu, Zilong Liu.
• IEEE TWC 2024 LoRaAid: Underground Joint Communication and Localization System Based on LoRa Technology, Huajin Zhang, Guanghua Liu, You Xu, Tao Jiang.
• IEEE IoTJ 2021 A CP Reduction Scheme Based on Symbol Repetition for Narrow-Band IoT Systems, Dejin Kong, You Xu, Guochao Song, Jian Li, Tao Jiang.
• JBUPT 2023 High Time-Frequency Efficiency Generalized Filter Banks Frequency Division Multiplexing Modulation Scheme, Yu Xin, You Xu, Huaijin Zhang, Tong Bao, Dejin Kong.
• IEEE IoTJ (under review) A Novel Cyclic-Shift Dual-Chirp Waveform Design Scheme for Extreme Environments, Huaijin Zhang, You Xu.

⚙️ mmWave Platforms

-AS-SAR for NLOS Millimeter-Wave Imaging Systems: IWR1843+DCA1000+LiDAR

• MIMO-FMCW Radar for NLOS Localization: IWR1843+DCA1000+LiDAR
• GNU Radio-based AFDM-ISAC platform for over-the-air communications and sensing experiments

📖 Educations

• 2021.09 - 2025.08, Ph.D., Huazhong University of Science and Technology, Wuhan.

📖 Academic Services

• Reviewer of IEEE Transactions on Wireless Communications
• Reviewer of IEEE Transactions on Vehicular Technology
• Reviewer of IEEE Transactions on Communications
• Reviewer of IEEE Transactions on Circuits and Systems for Video Technology
• Reviewer of IEEE Open Journal of the Communications Society
• Reviewer of IEEE Internet of Things Journal
• Reviewer of IEEE Remote Sensing Letters
• Reviewer of China Communications
• Reviewer of IEEE Access
• Reviewer of IEEE Network

🏆 Honors and Awards

• IEEE PIMRC Student Travel Grant, 2025

💬 Invited Talks

• 2025.09 Conference paper presentation, IEEE PIMRC 2025 in Istanbul, Türkiye.
• 2025.06 Oral Presentation, Chinese Institute of Electronics Outstanding Doctoral Forum in Hangzhou, China.
• 2024.10 Conference paper presentation, The 6th Electronic Warfare Conference in Chengdu, China.

👨‍💻 Experience

• 2026.07 - Present, University of Essex, Senior Research Officer, Colchester, UK.
• 2021.12 - 2022.03, University of Macau, Research Assistant, Macau.
• 2019.07 - 2025.08, Huazhong University of Science and Technology, Master & Ph.D., Wuhan, China.