RF/microwave/mm-wave circuits and systems, short-range radar sensor and sensing systems, new concept human-computer interaction (HCI), wireless sensing and its various applications in AI/AR/VR/IoT.
1. C. Gu and J. Lien, “Short-Range Micro-Motion Sensing with Radar Technology,” ISBN：9781785617607, Institution of Engineering and Technology (IET), 2019（著作）。
2. C. Gu, T. Y. Huang, C. Li and J. Lin, Chapter “Microwave and Millimeter-wave Radars for Vital Sign Monitoring” for Book “Radar for In-Door Monitoring: Detection, Localization, and Assessment,” ISBN: 9781498781985, CRC Press, 2017（著作章节）。
3. C. Gu, and J. Lien, “A Two-Tone Radar Sensor for Concurrent Detection of Absolute Distance and Relative Movement for Gesture Sensing,” IEEE Sensors Letters, Vol. 1, No. 3, June 2017.
4. C. Gu, Z. Peng and C. Li, “High-Precision Motion Detection Using Low-Complexity Doppler Radar with Digital Post-Distortion Technique,” IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 3, pp. 961-971, March 2016.
5. J.-M. Muñoz-Ferreras, R. Gómez-García, G. Wang, C. Gu, and C. Li, “Isolate the Clutter: Pure and Hybrid Linear-Frequency-Modulated Continuous-Wave (LFMCW) Radars for Indoor Applications,” IEEE Microwave Magazine, vol. 16, no. 4, pp. 40-54, May 2015.
6. S. Guan, J. Rice, C. Li, and C. Gu, “Advanced DC Offset Calibration Strategy for Structural Health Monitoring Based on Portable CW Radar Sensor,” IEEE Transactions on Instrumentation and Measurement, vol. 63, no. 12, pp. 3111-3118, December 2014.
7. C. Gu, W. Xu, G. Wang, T. Inoue, J. Rice, L. Ran, and C. Li, “Noncontact Large-Scale Displacement Tracking: Doppler Radar for Water Level Gauging,” IEEE Microwave and Wireless Components Letters, vol. 24, no. 12, pp. 899-901, November 2014.
8. G. Wang, C. Gu, T. Inoue, and C. Li, “A Hybrid FMCW-Interferometry Radar for Indoor Precise Positioning and Versatile Life Activity Monitoring,” IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 11, pp. 2812-2822, November 2014.
9. Y. Yang, C. Gu, Y.Li, R. Gale, and C. Li, “Doppler Radar Motion Sensor with CMOS Digital DC-Tuning VGA and Inverter-Based Sigma-Delta Modulator,” IEEE Transactions on Instrumentation and Measurement, vol. 63, no. 11, pp. 2666-2674, November 2014.
10. C. Gu, and C. Li, “From Tumor Targeting to Speech Monitoring: Accurate Respiratory Monitoring Using Medical Continuous-Wave Radar Sensors,” IEEE Microwave Magazine, vol. 15, no. 4, pp. 66-76, June 2014.
11. C. Gu, G. Wang, T. Inoue, and C. Li, “A Hybrid Radar Sensing System with Phase Compensation for Random Body Movement Cancellation in Doppler Vital Sign Detection,” IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 12, pp. 4678-4688, December 2013.
12. C. Gu, T. Inoue and C. Li, “Analysis and Experiment on the Modulation Sensitivity of Doppler Radar Vibration Measurement,” IEEE Microwave and Wireless Components Letters, Vol. 23, No. 10, pp.566- 568, October 2013.
13. C. Gu and C. Li, “Frequency-Selective Distortion in Continuous-Wave Radar Displacement Sensor,” Electronics Letters, Vol. 48, No. 23, pp.1495-1497, November 2012.
14. C. Gu, R. Li, R. Fung, C. Torres, S. Jiang, and C. Li, “Accurate Respiration Measurement using DC- Coupled Continuous-Wave Radar Sensor for Motion-adaptive Cancer Radiotherapy,” IEEE Transactions on Biomedical Engineering, Vol.59, No.11, pp.3117-3123, Nov. 2012.
15. C. Gu, C. Li, J. Long, J. Lin, and L. Ran, “Instrument-Based Non-Contact Doppler Radar Vital Sign Detection System Using Heterodyne Digital Quadrature Demodulation Architecture,” IEEE Transactions on Instrumentation and Measurement, Vol.59, No.6, pp.1580-1588, June 2010.