Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar

• Published in: IEEE transactions on biomedical engineering Vol. 62; no. 12; pp. 2931 - 2940
• Main Authors: Wang, Fu-Kang, Chou, You-Rung, Chiu, Yen-Chen, Horng, Tzyy-Sheng
• Format: Journal Article
• Language: English
• Published: United States IEEE 01.12.2015; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Biomedical monitoring; bistatic self-injection-locked (SIL) radar; cardiopulmonary sensor; Demodulation; Doppler continuous-wave radar; Doppler radar; Heart Rate - physiology; Humans; Injection; Monitoring; Monitoring, Ambulatory - instrumentation; Monitoring, Ambulatory - methods; pedometer; Power consumption; Radar; Radar - instrumentation; Radar antennas; Respiration; Signal Processing, Computer-Assisted - instrumentation; Spectrogram; time-frequency spectrogram; Walking - physiology; Wearable health monitor; wireless transmission; Bistatic self-injection-locked (SIL) radar; cardiopulmonary sensor; time-frequency spectrogram; pedometer; wearable health monitor; Doppler continuous-wave radar; wireless transmission

This paper presents wearable health monitors that are based on continuous-wave Doppler radar technology. To achieve low complexity, low power consumption, and simultaneous wireless transmission of Doppler information, the radar architecture is bistatic with a self-injection-locked oscillator (SILO)...