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论文类型： 会议论文

发表时间： 2011-10-15

收录刊物： EI、Scopus

卷号： 2

页面范围： 676-679

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. ? 2011 IEEE.