@ARTICLE{xu:tbcas2015a, author={M. C. Huang and J. J. Liu and W. Xu and C. Gu and C. Li and M. Sarrafzadeh}, journal={IEEE Transactions on Biomedical Circuits and Systems}, title={A Self-Calibrating Radar Sensor System for Measuring Vital Signs}, year={2016}, volume={10}, number={2}, pages={352-363}, month={April},}