Microwave and millimeter-wave radars for vital sign monitoring

Changzhan Gu, Tien Yu Huang, Changzhi Li, Jenshan Lin

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations


Doppler radar has been widely used for remote sensing applications for many years, including velocity measurement [1], navigation and position sensing [2], weather sensing [3], 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.

Original languageEnglish
Title of host publicationRadar for Indoor Monitoring
Subtitle of host publicationDetection, Classification, and Assessment
PublisherCRC Press
Number of pages28
ISBN (Electronic)9781498782005
ISBN (Print)9781138746091
StatePublished - Jan 1 2017


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