Abstract:Objective The present study was to perform research on the effect of different body posture
on the radar echo signal to extract the vital signs parameters in the biological radar monitoring system.
Methods The most common two positions lie on your back and sit were taken as the posture in the
monitoring processing. The pose of radar echo signal analysis method was studied, and an improved
adaptive cancellation filter algorithm was put forward. Results The center of the adaptive canceller
output fi ltering signal frequency and synchronous monitoring heartbeat signal frequency was consistent
under these two postures, and the strongest signal energy point was located in the center of the adaptive
canceller output. Conclusion Effective vital signs parameters of breathing and heartbeat signals could be
gained via using the improved adaptive cancellation fi lter algorithm under different postures.
张华,祁富贵,王帅杰,李钊,
路国华,王健琪. 不同身体姿势对雷达式生命体征监测系统的影响[J]. 中国医疗设备, 2017, 32(6): 28-31.
ZHANG Hua, QI Fu-gui,
WANG Shuai-jie, LI Zhao,
LU Guo-hua, WANG Jian-qi. Effect of Different Body Posture on the Bio-radar Signal Monitoring
System. China Medical Devices, 2017, 32(6): 28-31.