Doppler radar has been widely used for remote sensing applications for many years, including velocity measurement , navigation and position sensing , weather sensing , automobile speed sensing [4,5], and vital sign detection [6,7]. In principle, a Doppler radar transmits a continuous wave (CW) toward a moving target and measures the relative velocity by detecting the frequency shift in the received signal as illustrated in Figure 9.1. The frequency shift of the received signal is known as the Doppler effect. Based on the effect, Doppler radar can be used to detect periodic movements such as mechanical vibration and physiological movement.
|Title of host publication||Radar for Indoor Monitoring|
|Subtitle of host publication||Detection, Classification, and Assessment|
|Number of pages||28|
|State||Published - Jan 1 2017|