“Portable Radar Systems at the Human-Microwave Frontier: Life Activity Sensing and Human Tracking”
Date/time: Friday, Sep 27, 2024 (10:00 AM-11:00 AM)
SPEAKER: Dr. Changzhi Li
Texas Tech University, USA
ABSTRACT:
By sensing various life activities with microwave signals, portable radar with state-of-the-art front-end and measurement algorithms has great potential to improve healthcare, security, and human-machine interface. This presentation will first provide an overview of the state-of-the-art smart radar sensors powered by advanced digital/RF beamforming, multiple-input and multiple-output (MIMO), inverse synthetic-aperture radar (ISAR) technique, and deep learning. A few examples based on interferometry, Doppler, frequency-shift keying (FSK), and frequency-modulated continuous-wave (FMCW) modes at 5.8 GHz, 24 GHz, and 120 GHz will be discussed. In addition, the use of nonlinear technologies will be reported, with a focus on in-band third-order intermodulation measurement for enhanced target identification and parameter extraction. Case studies at this exciting human-microwave frontier will be presented on physiological signal sensing, non-contact human-computer interface, driving behavior recognition, human tracking, and studies in clinical environments. Finally, this talk will conclude with future industrial and academic R&D outlooks for microwave short-range life activities sensing.
BIOGRAPHY:
Changzhi Li received a Ph.D. degree in Electrical Engineering from the University of Florida, Gainesville, FL in 2009. He is a Professor at Texas Tech University. His research interest is microwave/millimeter-wave sensing for healthcare, security, and human-machine interfaceeceived his Dr.-Ing. degree in Electrical Engineering from the University of Kassel, Kassel, Germany, in 2009. From 2007-to 2010, he was with the Microwave Electronics Labs at the University of Kassel as a Research Scientist working on transistor modeling and RF power amplifier design. From 2010-to 2012, he was a Senior Research Engineer with Nokia Siemens Networks, where he focused on the R&D of enabling power amplifier technologies for wideband radio at NSN Research Center in Beijing, China.
Dr. Li is an MTT-S Distinguished Microwave Lecturer. He was a recipient of the IEEE MTT-S Outstanding Young Engineer Award, the IEEE Sensors Council Early Career Technical Achievement Award, the IEEEHKN Outstanding Young Professional Award and the ASEE Frederick Emmons Terman Award. He is the General Chair of the 2024 IEEE Radio & Wireless Week (RWW), and an Associate Editor of the IEEE JOURNAL OF ELECTROMAGNETICS, RF AND MICROWAVES IN MEDICINE AND BIOLOGY. He served as the chair of the MTT-S Technical Committee “Biological Effect and Medical Applications of RF and Microwave” from 2018 to 2019, the TPC Chair of the 2022 IEEE RWW, a TPC Co-Chair of the IEEE MTT-S International Microwave Biomedical Conference (IMBioC) from 2018 to 2019, and the TPC Chair of the IEEE Wireless and Microwave Technology Conference from 2012 to 2013. He is a Fellow of the IEEE and a Fellow of the National Academy of Inventors (NAI).
LOCATION:
Univ. of Central Florida
Virtual Meeting
Organizers:
Jiachen Guo, Prof. Xun Gong, Prof. Kenle Chen and Prof. Raj Mittra (407)-450-9334,
jiachen.guo@ucf.edu