Multiscale Cardiac Monitoring with No Physical Contact: An Investigation Using Impulse Radio Ultra-Wideband Radar
Currently, the most common methods for detecting cardiac information are electrocardiography (ECG) and photoplethysmography (PPG). ECG uses metal electrodes placed on the body to detect electrical signals, while PPG uses optical sensors at the wrist or finger to detect changes in blood volume. While these methods are widely used in clinical settings, they require physical contact and may not be suitable for continuous, real-time monitoring in certain situations. To address this, researchers are exploring the development of a contactless method for detecting cardiac information that could be used for next-generation medical monitoring and home healthcare. Such a method would have many potential applications and could improve the accuracy and accessibility of cardiac monitoring. In a paper published this month, a new method for measuring cardiac motion using impulse radio ultra-wideband (IR-UWB) radar at a center frequency of 7.29 GHz is proposed. This method aims to improve upon tradit