Abstract
This article presents a novel monopulse radar that combines high-sensitivity continuous-wave (CW) and self-injection-locking (SIL) receivers to detect and localize the movements in a human body. The proposed radar utilizes a CW sum pattern and an SIL difference pattern to process the echo signal from the target, so it can produce a monopulse ratio to estimate the angle of arrival (AoA) of the echo signal. With this capability, the radar can localize the movements on the target’s chest that are caused by vital signs such as respiration and heartbeat for posture classification. In addition, the radar can be used in a fall alarm as it can detect a change of posture during a fall. As a proof of concept, a 2.4-GHz prototype radar was experimentally implemented to validate the robustness of detecting falls regardless of their direction.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Microwave Theory and Techniques
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
