@article{xu:mwcl2014, author = {Changzhan Gu and Wenyao Xu and Guochao Wang and Jennifer A. Rice and Lixin Ran and Changzhi Li}, title = "{Noncontact Large-Scale Displacement Tracking: Doppler Radar for Water Level Gauging}", journal = {IEEE Microwave and Wireless Components Letters (MWCL)}, volume = {24}, number = {12}, pages = {899--901}, month = {December}, year = {2014} }