【摘要】 综述了心音信号识别与分类的基本方法（统计分析方法、神经网络方法）及其研究进展，并对各种方法中存在的主要问题进行了探讨。更多还原

【Abstract】 This paper reviews the methods and research advances of recognition and classification of heart sounds. The methods include the statistical techniques and artificial neural network. It also discusses the main problems in the methods.更多还原