Yavari Ehsan, Song Chenyan, Lubecke Victor, Boric-Lubecke Olga
Electrical Engineering Departmentof University of Hawaii, Manoa, Honolulu 96822, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:1913-6. doi: 10.1109/IEMBS.2011.6090541.
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.
基于片上系统（SoC）的多普勒雷达占用传感器是通过对呼吸信号的非接触检测而开发的。该无线电设备是使用德州仪器现成的低功耗射频CC2530 SoC芯片开发的。为了节省功耗，发射机在2.405 GHz频率上间歇性地发送信号。反射脉冲被解调，基带信号经过处理以恢复周期性运动。该系统在机械目标和人体受试者上均进行了测试。在这两种情况下，多普勒雷达检测到的周期性运动都与实际运动紧密匹配，并且已经证明基于SoC的系统可用于目标检测。
