Cardiac Cycle Detection for Heart Sound Signal Based on Instantaneous Cycle Frequency

摘要：

A short time cycle frequency spectrum based method is proposed to estimate instantaneous cycle frequency (ICF) for a heart sound signal, which in turn indicates the heart beating frequency (HBF). Cardiac cycles in the signal are thus detected based on the ICF. A cross correlation between adjacent cardiac cycles is further used to compensate for any estimation error of the ICF so as to improve the accuracy of cycle detection. The method is valid for a wide range of heart sound signals even in noisy environment because it exploits the nature of repetition behavior of heart sound. Furthermore, heart sound signal is the only signal source to the method. No any other prior knowledge is required. It can be operated automatically.

关键词： Heart Sound Signal Cardiac Cycle Detection Short-Time Cycle Frequency Spectrum Instantaneous Cycle Frequency

作者: Hong Tang Ting Li Tianshuang Qiu

作者单位: Department of Biomedical Engineering Dalian University of Technology Dalian, China Faculty of Electronic Information and Electrical Eng.Dalian University of Technology Dalian, China

会议类型: 国际会议

会议名称: 2011 4th International Conference on Biomedical Engineering and Informatics(第四届生物医学工程与信息学国际会议 BMEI 2011)

会议地点: 上海

会议语种:英文

页码: 674-677

在线出版日期: 2011-10-15（万方平台首次上网日期，不代表论文的发表时间）