Abstract

In the above paper, the author presents a new methodology to simultaneously detect motion direction and measure respiration rate under large 1-D body motion using only one noncontact continuous-wave (CW) Doppler radar vital sign detection system. The study of the motion modulation effect could be a starting point for future solutions for the random body movement (RBM) effect. However, some errors have been found which may affect the readers’ understanding, and they will be clarified in this comment.

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