Ji-Xun Zhong

Title: Ji-Xun Zhong: Radar Signal Processing and Displacement Monitoring

Introduction

Ji-Xun Zhong is an inventor based in Kaohsiung, Taiwan, whose work includes radar-based vital-sign detection and displacement monitoring. His listed portfolio includes 2 patents, and he is associated with National Sun Yat-Sen University of Kaohsiung.

Latest Patents

Zhong’s latest patents address methods for improving radar signal processing.

“Radar Heartbeat Signal Detection Based on PRT Model Shaping” describes a system in which radar detects a vital-sign signal containing heartbeat and respiration components. A computing device extracts the heartbeat component, divides it into one-cycle signals, applies a PRT model to each cycle, and connects the processed cycles to produce a shaped radar heartbeat signal.

“Displacement Monitoring Method Based on Elliptical Trajectory Calibration and Modified Principal Component Analysis” uses linear combinations to compress four channels into two signal sets. The method forms tilted elliptical trajectories that can be calibrated for DC offset, amplitude imbalance, and phase imbalance. Their mirror symmetry helps cancel residual clutter and recover a clearer Doppler phase after demodulation and combination.

Career Highlights

Zhong’s listed inventions focus on practical challenges in radar sensing, including extracting heartbeat signals and reducing null-point and clutter effects in Doppler radar. His work is associated with National Sun Yat-Sen University of Kaohsiung.

Collaborations

His listed coworkers include Fu-Kang Wang and Ju-Yin Shih.

Conclusion

Ji-Xun Zhong’s patent work applies signal-processing techniques to improve radar-based heartbeat detection and displacement monitoring.