Jun. 2025 - Now
Postdoctoral Research Fellow, Shanghai Jiao Tong University. State Key Laboratory of Radio Frequency Heterogeneous Integration. Working with Prof. Junfa Mao.
Biography
Yuchen Li
Postdoctoral Research Fellow, Microwave Wireless Sensing Lab
Department of Electronic Engineering, Artificial Intelligence Institute, Shanghai Jiao Tong University (SJTU)
Supervisor: Prof. Changzhan Gu & Prof. Junfa Mao
Email: liyuchen (at) sjtu (dot) edu (dot) cn
Jun. 2022 - Now
Co-founder & CTO, Hecaray Technology. Millimeter-wave sensing technology for health monitoring.
Sep. 2020 - Jun. 2025
Ph.D. in Electronic Science and Technology, Shanghai Jiao Tong University. Advised by Prof. Changzhan Gu.
Sep. 2016 - Jun. 2020
B.Sc. in Electromagnetic Fields and Wireless Technology, University of Electronic Science and Technology of China. Yingcai Honors Class, School of Electronic Science and Engineering.
Research Interests
Short-range radar sensor and sensing systems, new concept human-computer interaction (HCI), radar-based vital sign detection, wireless sensing and its various applications in AI/AR/Biomedical/IoT.
Research themes & related papers ↗News
Our review on unobtrusive cardiac activity monitoring with biomedical radar is published in Bioelectromagnetics in Medicine. Read more ↗
Our work on mmWave cardiac monitoring received the Second Prize of the IWS FLASH Best Paper Award. Read more ↗
Received the 2025 IEEE MTT-S Tom Brazil Graduate Fellowship. Read more ↗
Publications
Full author lists · Yuchen Li highlightedSearch publications ↗
Journal Papers22
Yuchen Li, Jie Cao, Qishan Chen, Li Zhang, Changzhan Gu. “Unobtrusive Cardiac Activity Monitoring Using Biomedical Radar: Principles, Applications, and Perspectives.” Bioelectromagnetics in Medicine, vol. 1, no. 1, 2026.
Yuchen Li, Jiayu Zhang, Changzhan Gu. “A Double L-Shaped 4-D MIMO Radar Array With Optimal Subspace-Based Angular Resolution.” IEEE Transactions on Microwave Theory and Techniques, vol. 74, no. 4, pp. 3933-3944, 2026.
Yuchen Li, Shuqin Dong, Changzhan Gu. “Feel Your Heartbeat Across Space: Radar-Based Cardiac Activity Monitoring for Healthcare Applications.” IEEE Microwave Magazine, vol. 25, no. 12, pp. 91-111, 2024.
Yuchen Li, Changzhan Gu, Junfa Mao. “A Robust and Accurate FMCW MIMO Radar Vital Sign Monitoring Framework With 4-D Cardiac Beamformer and Heart-Rate Trace Carving Technique.” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 10, pp. 6094-6106, 2024.
Yuchen Li, Changzhan Gu, Junfa Mao. “4-D Gesture Sensing Using Reconfigurable Virtual Array Based on a 60-GHz FMCW MIMO Radar Sensor.” IEEE Transactions on Microwave Theory and Techniques, vol. 70, no. 7, pp. 3652-3665, 2022.
Featured Article of IEEE MTT-S Newsletter June 2022
Jiayu Zhang, Yuchen Li, Zhiwei Zhang, Changzhan Gu, Junfa Mao. “A Low-Complexity and Efficient Spatial Resampling Technique for Range–Angle Decoupling With 4-D High-Resolution MIMO FMCW Radar System.” IEEE Transactions on Microwave Theory and Techniques, vol. 74, no. 6, pp. 5791-5806, 2026.
Cover Image of the Issue
Jingyun Lu, Yuchen Li, Yangtao Ye, Gaomin Xue, Changzhan Gu. “A High-Performance Contactless Heart Rate Estimation Technique Based on Sparse and Asymmetric Range-Domain Beamforming and Harmonic Signal Tracking.” IEEE Transactions on Microwave Theory and Techniques, vol. 74, no. 4, pp. 3795-3806, 2026.
Yiyan Cao, Yuchen Li, Jiayu Zhang, Changzhan Gu. “A Novel DC Offsets Calibration Technique for Detecting Small Displacement Motions With Microwave Interferometric Radar.” IEEE Microwave and Wireless Technology Letters, vol. 36, no. 4, pp. 637-640, 2026.
Jiayu Zhang, Yuchen Li, Yiyan Cao, Zhiwei Zhang, Changzhan Gu, Junfa Mao. “Accurate Multitarget Microwave Cardiogram Sensing With 4-D Digital Beamforming Technique Based on a K-Band Short-Range End-to-End 4T8R Sparse MIMO FMCW Radar System.” IEEE Transactions on Microwave Theory and Techniques, vol. 74, no. 1, pp. 421-434, 2026.
Jiayu Zhang, Yuchen Li, Zhiwei Zhang, Changzhan Gu, Junfa Mao. “Frequency-Spatial Adaptive Digital Beamforming Technique for Range-Angle Decoupling With High-Resolution MIMO Radar.” IEEE Microwave and Wireless Technology Letters, vol. 35, no. 6, pp. 888-891, 2025.
Shuqin Dong, Yuchen Li, Changzhan Gu, Junfa Mao. “Robust Cardiac Timing Detection Technique With Vectors Analytic Demodulation in Doppler Cardiogram Sensing.” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 8, pp. 4866-4877, 2024.
Shuqin Dong, Yuchen Li, Jingyun Lu, Zhi Zhang, Changzhan Gu, Junfa Mao. “Accurate Detection of Doppler Cardiograms With a Parameterized Respiratory Filter Technique Using a K-Band Radar Sensor.” IEEE Transactions on Microwave Theory and Techniques, vol. 71, no. 1, pp. 71-82, 2023.
Featured Article of IEEE MTT-S Newsletter July 2022
Jingtao Liu, Yuchen Li, Changzhan Gu. “Solving Phase Ambiguity in Interferometric Displacement Measurement With Millimeter-Wave FMCW Radar Sensors.” IEEE Sensors Journal, vol. 22, no. 9, pp. 8482-8489, 2022.
Jingtao Liu, Yuchen Li, Changzhi Li, Changzhan Gu, Jun-Fa Mao. “Accurate Measurement of Human Vital Signs With Linear FMCW Radars Under Proximity Stationary Clutters.” IEEE Transactions on Biomedical Circuits and Systems, vol. 15, no. 6, pp. 1393-1404, 2021.
Wei Xu, Yuchen Li, Changzhan Gu, Jun-Fa Mao. “Large Displacement Motion Interferometry With Modified Differentiate and Cross-Multiply Technique.” IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 11, pp. 4879-4890, 2021.
Jiayu Zhang, Zhiwei Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “Frequency-Domain Leakage and Stationary Clutter Cancellation Technique With a K-Band Short-Range End-to-End Sparse MIMO FMCW Radar System.” IEEE Transactions on Microwave Theory and Techniques, vol. 73, no. 10, pp. 8310-8324, 2025.
Jiayu Zhang, Zhiwei Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “Reconfigurable Frequency–Spatial Equivalent Array Based on FMCW Radar for Accurate Close-Spaced Multitargets Motion Sensing.” IEEE Sensors Journal, vol. 25, no. 10, pp. 17975-17986, 2025.
Shuqin Dong, Li Wen, Yuchen Li, Jingyun Lu, Zhi Zhang, Chengmei Yuan, Changzhan Gu. “Remote Respiratory Variables Tracking With Biomedical Radar-Based IoT System During Sleep.” IEEE Internet of Things Journal, vol. 11, no. 11, pp. 19937-19948, 2024.
Jiayu Zhang, Zhiwei Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “Target Detection With Short-Range FMCW Radar Based on Time–Frequency Characteristic-Based Leakage Cancellation Technique.” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 4, pp. 2318-2331, 2024.
Jingtao Liu, Jingyun Lu, Yuchen Li, Changzhan Gu, Junfa Mao. “Mitigation of Leakage and Stationary Clutters in Short-Range FMCW Radar With Hybrid Analog and Digital Compensation Technique.” IEEE Transactions on Microwave Theory and Techniques, vol. 70, no. 1, pp. 62-73, 2022.
Jie Cao, Li Wen, Shuqin Dong, Yuchen Li, Linsheng Wu, Yijing Guo, Zi Zeng, Qing Cao, Kang Chen, Changzhan Gu. “Contactless Cardiac Detection of Arrhythmia Based on Distribution Encoding Network With Microwave Biomedical Radar.” IEEE Transactions on Microwave Theory and Techniques, vol. 74, no. 4, pp. 3135-3148, 2026.
Zhiwei Zhang, Jiayu Zhang, Jingtao Liu, Yuchen Li, Changzhan Gu. “Enhanced Motion Sensing With FMCW Radar Based on a Novel Frequency-Reconfigurable Technique.” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 10, pp. 6187-6199, 2024.
Conference Papers30
Yuchen Li, Zichen Huang, Jie Cao, Xiaolei Xu, Qishan Chen, Li Zhang, Changzhan Gu. “Millimeter-Wave Radar-Based Unobtrusive Arrhythmia Classification Using Deep Learning.” 2026 56th European Microwave Conference (EuMC), 2026.
Forthcoming · 6–8 October 2026, London, UK.
Yuchen Li, Zichen Huang, Jie Cao, Xiaolei Xu, Qishan Chen, Xiang Yuan, Jingxian Chen, Li Zhang, Changzhan Gu. “mmWave Radar-Based Non-Contact Cardiac Activity Monitoring for Arrhythmia Detection and Systolic Time Interval Estimation.” 2026 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2026.
2026 IWS FLASH Best Paper Award · Second Prize
Yuchen Li, Gaomin Xue, Jie Cao, Xiaolei Xu, Qishan Chen, Li Zhang, Changzhan Gu. “A Knowledge-Fusion Deep Learning Approach for Premature Beat Classification Using mmWave Radar in Clinical Settings.” 2025 Asia-Pacific Microwave Conference (APMC), pp. 1-3, 2025.
Yuchen Li, Jingyun Lu, Changzhan Gu. “4D Vital Sign Detection Based on a 24GHz 2T4R MIMO Radar System.” 2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP), pp. 1-2, 2024.
Best Student Paper 2nd Prize
Yuchen Li, Keke Zheng, Changzhan Gu. “A Fast and Efficient FMCW Radar Phase Extraction Technique at Ultra-Narrow Range for Vital Sign Detection.” 2024 IEEE/MTT-S International Microwave Symposium - IMS 2024, pp. 1057-1060, 2024.
Post-Deadline Paper
Yuchen Li, Jingyun Lu, Shuqin Dong, Changzhan Gu, Junfa Mao. “Temporal-Spatial Equivalent Virtual Array Technique for Accurate Vital Sign Monitoring.” 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023, pp. 1093-1096, 2023.
Yuchen Li, Changzhan Gu, Junfa Mao. “An In-Vehicle Occupant Detection Technique Based on a 60 GHz FMCW MIMO Radar.” 2022 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2022.
Yuchen Li, Jingyun Lu, Changzhan Gu, Xiaokang Yang. “Gesture Interaction for Gaming Control Based on an Interferometric Radar.” CAAI International Conference on Artificial Intelligence (CICAI 2022), Lecture Notes in Computer Science, pp. 605-609, 2022.
Yuchen Li, Changzhan Gu, Jun-Fa Mao. “A 4D Gesture Sensing Technique based on Spatiotemporal Detection with a 60 GHz FMCW MIMO Radar.” 2021 IEEE MTT-S International Microwave Symposium (IMS), pp. 462-465, 2021.
Student Paper Competition Finalist
Jiayu Zhang, Yuchen Li, Zhiwei Zhang, Yiyan Cao, Changzhan Gu, Junfa Mao. “A Portable K-Band 4-D MIMO FMCW Radar System with Sparse Array for Short-Range Dual-Hand Gesture Sensing.” 2025 Asia-Pacific Microwave Conference (APMC), pp. 1-3, 2025.
Jie Cao, Yuchen Li, Jingtao Liu, Changzhan Gu. “A Novel Contactless Concentration Evaluation Technique Using Millimeter-Wave Radar.” 2024 International Conference on Microwave and Millimeter Wave Technology (ICMMT), pp. 1-3, 2024.
Wenjie Li, Yuchen Li, Jiayu Zhang, Jingyun Lu, Shuqin Dong, Changzhan Gu, Junfa Mao. “A Feature-based Filtering Algorithm with 60GHz MIMO FMCW Radar for Indoor Detection and Trajectory Tracking.” 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023, pp. 427-430, 2023.
Jiayu Zhang, Yuchen Li, Wenjie Li, Zhiwei Zhang, Changzhan Gu, Junfa Mao. “Multi-Chirps Convolution Technique for Range Spectrum Signal Enhancement Based on a 60-GHz MIMO FMCW Radar.” 2023 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2023.
Wenjie Li, Yuchen Li, Jiayu Zhang, Jingyun Lu, Changzhan Gu, Junfa Mao. “A Receiver Reconfigurable Method for Indoor Human Detection with 60GHz MIMO FMCW Radar.” 2023 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-4, 2023.
Li Wen, Yuchen Li, Yangtao Ye, Changzhan Gu, Jun-Fa Mao. “Audio Recovery via Noncontact Vibration Detection with 120 GHz Millimeter-Wave Radar Sensing.” 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT), pp. 1-3, 2021.
Fei Tong, Yuchen Li, Changzhan Gu, Jun-Fa Mao. “A Portable 5.8 GHz Radar Sensor with an Integreted Common-Aperture Single Antenna for Noncontact Physiological Monitoring.” 2021 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2021.
叶炀涛, 李予琛, 顾昌展, 毛军发. “基于小型化120GHz毫米波干涉雷达系统的手势识别.” 全国微波毫米波会议 (NCMMW), 南京, 2021.
Jiayu Zhang, Shuqin Dong, Yuchen Li, Yiyan Cao, Zhiwei Zhang, Changzhan Gu, Junfa Mao. “Accurate Doppler Cardiogram Sensing with Frequency-Domain Digital Beamforming Technique Based on a $K$-Band Biomedical Radar.” 2025 IEEE/MTT-S International Microwave Symposium - IMS 2025, pp. 279-282, 2025.
Jiayu Zhang, Zhiwei Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “Accurate Large-Scale Motion Sensing With FMCW Radar Based on Range-Dependent DFT Technique.” 2025 IEEE/MTT-S International Microwave Symposium (IMS), IF1-19, 2025.
Jiayu Zhang, Zhiwei Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “Target Localization and Vital Signs Monitoring Based on Spatial-Temporal-Frequency Characteristics With Short-Range FMCW Radar.” 2024 International Applied Computational Electromagnetics Society Symposium (ACES-China), pp. 1-3, 2024.
Xuanmin Wang, Yiyan Cao, Yuchen Li, Changzhan Gu. “A Novel Range Estimation Method based on MUSIC High-Resolution Profile.” 2024 International Applied Computational Electromagnetics Society Symposium (ACES-China), pp. 1-3, 2024.
Jiayu Zhang, Zhiwei Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “Real-Time Human Motion Tracking Technique Based On a 77 GHz FMCW MIMO Radar System.” 2024 International Conference on Microwave and Millimeter Wave Technology (ICMMT), pp. 1-3, 2024.
Zhiwei Zhang, Jiayu Zhang, Yuchen Li, Changzhan Gu. “Enhanced Micrometer-Scale Motion Sensing Using a Reconfigurable Virtual CW Algorithm Based on 60 GHz FMCW Radar.” 2024 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2024.
Keke Zheng, Jiayu Zhang, Yuchen Li, Changzhan Gu, Junfa Mao. “A Novel Data-Based DC Offset Calibration Technique for Millimeter-wave Interferometric Sensing of Weak Displacement Motions.” 2024 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-4, 2024.
Shuqin Dong, Jingyun Lu, Yuchen Li, Lina Ma, Changzhan Gu, Jun-Fa Mao. “Accurate Noncontact Sleep Apnea-hypopnea Detection Using a K-band Biomedical Radar.” 2023 Asia-Pacific Microwave Conference (APMC), pp. 432-434, 2023.
Shuqin Dong, Jingyun Lu, Yuchen Li, Caojun Ji, Chengmei Yuan, Dayue Zhao, Menghan Wang, Jingxian Chen, Changzhan Gu, Jun-Fa Mao. “Accurate Fast Heartrate Detection Based on Fourier Bessel Series Expansion During Radar-based Sleep Monitoring.” 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023, pp. 1196-1199, 2023.
Shuqin Dong, Zhi Zhang, Yuchen Li, Jingyun Lu, Hao Wu, Changzhan Gu, Junfa Mao. “COVID-SENSE: Radar-Based Remote Respiratory Disorder Detection in Clinical Environment.” 2023 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2023.
Ke Wu, Chenyue Shi, Yuchen Li, Changzhan Gu, Jinjing. “An Adaptive Kalman Filter based Digital Phase Detector for All Digital Phase-Locked Loop.” 2021 IEEE MTT-S International Wireless Symposium (IWS), pp. 1-3, 2021.
Yiyan Cao, Xuanmin Wang, Lina Ma, Yuchen Li, Changzhan Gu. “Multi-target Tracking Algorithm Based on Super-precision Distance Estimation Method.” 2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP), pp. 1-2, 2024.
Jingtao Liu, Zesheng Zhang, Jingyun Lu, Yuchen Li, Changzhan Gu, Jun-Fa Mao. “A High-efficiency and High-accuracy Distance Measurement Technique Based on Phase Differentiation and Accumulation with FMCW radars.” 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023, pp. 521-524, 2023.
Book Chapters1
Jingtao Liu, Yuchen Li, Changzhan Gu. “Radar-based vital signs monitoring.” Contactless Vital Signs Monitoring, pp. 181-203, 2022.
Patents 21
Invention patents & industrial designSearch patents ↗
Awards & Honors
IEEE IWS FLASH Best Paper Award, Second Prize (News)
第三届全国博士后创新创业大赛，全国银奖 (News)
IEEE MTT-S Tom Brazil Graduate Fellowship (First in China)
IEEE APCAP Best Student Paper Award, Second Place Winner
瑞金医院&上海人工智能研究院 数字医学技术及应用创新大赛，一等奖
2023世界人工智能大会SAIL奖，TOP30
第十三届"挑战杯"全国大学生创业计划竞赛，全国铜奖
第十三届“挑战杯”上海市大学生创业计划竞赛，上海市金奖
第十七届“挑战杯”全国大学生课外学术科技作品竞赛，全国三等奖
第十七届“挑战杯”全国大学生课外学术科技作品竞赛，上海市二等奖
"华为杯"第十七届中国研究生数学建模竞赛，全国二等奖
Contact
Emailliyuchen (at) sjtu (dot) edu (dot) cn
Office · Hecaray Technology2F 208, 19P, 108 Yuanmei RD, Shanghai 200240, ChinaOffice · Shanghai Jiao Tong UniversityRoom 512, SEIEE Building 1, 800 Dongchuan Road, Shanghai, China