Respiration Signal Pattern Analysis for Doppler Radar Sensor with Passive Node and Its Application in Occupancy Sensing of a Stationary Subject

• Published in: Biosensors (Basel) Vol. 15; no. 5; p. 273
• Main Authors: Song, Chenyan, Yavari, Ehsan, Gao, Xiaomeng, Lubecke, Victor M., Boric-Lubecke, Olga
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 27.04.2025; MDPI
• Subjects: Accuracy; Adult; Algorithms; Biosensing Techniques; cardiorespiratory motion; Communication; Cost control; Doppler radar; Energy conservation; Energy consumption; Forecasts and trends; Humans; HVAC; Infrared cameras; Lighting; Male; Nodes; occupancy sensor; Pattern analysis; Photovoltaic cells; Physiology; Privacy; Quadratures; Radar; Radar detection; Radar meteorology; Radar systems; Receivers & amplifiers; Respiration; respiration signal; Respiratory Rate; Sensitivity; Sensors; Signal processing; Signal Processing, Computer-Assisted; Simulation methods; Smart buildings; Technology adoption; United States; Doppler radar; cardiorespiratory motion; occupancy sensor; respiration signal

Doppler radar node occupancy sensors are promising for applications in smart buildings due to their simple circuits and price advantage compared to quadrature radar sensors. However, single-channel sensitivity limitations may result in low sensitivity and misinterpreted motion rates if the detected...