title: System-on-chip based Doppler radar occupancy sensor.
abstract: System-on-Chip (SoC) based Doppler radar occupancy sensor is developed through non contact detection of respiratory signals. The radio was developed using off the shelf low power RF CC2530 SoC chip by Texas Instruments. In order to save power, the transmitter sends signal intermittently at 2.405 GHz. Reflected pulses are demodulated, and the baseband signals are processed to recover periodic motion. The system was tested both with mechanical target and a human subject. In both cases Doppler radar detected periodic motion closely matched the actual motion, and it has been shown that an SoC based system can be used for subject detection.
authors.affiliation: Electrical Engineering Departmentof University of Hawaii, Manoa, Honolulu 96822, USA. ehsan@hawaii.edu
authors.forename: Ehsan
authors.initials: E
authors.lastname: Yavari
authors.forename: Chenyan
authors.initials: C
authors.lastname: Song
authors.forename: Victor
authors.initials: V
authors.lastname: Lubecke
authors.forename: Olga
authors.initials: O
authors.lastname: Boric-Lubecke
mesh_terms: D056044:Actigraphy / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D011825:Radar / Q000295:instrumentation*; D015203:Reproducibility of Results; D056152:Respiratory Rate / Q000502:physiology*; D012680:Sensitivity and Specificity; D014159:Transducers