摘要
针对动脉、静脉信号的特征点准确定位问题,着重讨论了采用改进小波进行动脉、静脉信号去伪存真处理的方法,并利用时频分析的瞬时频率跃变对动脉信号的特定点进行了定位仿真,提出了一种时频多信号关联的静脉特征捕捉和定位方法。研究结果表明,动、静脉波信号的特定点定位方法比传统方法更加准确。
Aiming at tackling the accurate positioning of feature points problem of the arterial signal and the venous signal ,a new method of improving the wavelet to simulate the elimination of noise was realized in the arterial signal and the venous signal , the mutation of the instantaneous frequency＇s time frequency analysis was employed for the position simulation of the arterial signal＇s feature points , and a new method of utilizing the muhi-signal relation to capture the venous signal＇s characteristics was presented. The results indicate that the new method of locating the arterial signal＇s feature points and the venous signal＇s feature points is more accurate than the traditional method.
出处
《机电工程》
CAS
2009年第12期17-19,共3页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(60871020)
关键词
血压信号
瞬时频率
特征点
blood pressure signal
instantaneous frequency
feature points
