IR-UWB radar-based near-field head rotation movement sensing under fixed body motions

In this study, we propose a method to measure a head rotation movement using an impulse radio ultra-wideband (IR-UWB) radar. The method modifies the pulse Doppler processing technique to extract a specific one-dimensional array, which represents the time of arrival (TOA) information of the head motion, from a frame buffer. Head movement sensing can be utilized to differentiate an intended human motion from an unintended head motion. A human interface device can also utilize head movement information.