【摘要】 本文利用心音信号在小波域的分布特点,提出了一种基于小波变换域的参数化双谱心音信号分析方法。通过对不同类别的心音信号数据分析表明,本方法不仅能抑制各类噪声的干扰,而且能有效地区分不同情绪状态下心音信号的模式特征,为分析人类情绪变化的特点提供了一种实用而有效的方法。更多还原

【Abstract】 With distribution feature of heart sound signals in wavelet domain, an analysis method is proposed for parametric bispectrum of heart sound signals based on wavelet transform domain in this paper.By heart sound signals data analysis of different sorts.the results show that this method not only can restrain all sorts of interference of noise.but can effectively differentiate pattern characters of heart sound signals on the different mood states,and provide a kind of practical and effective method for analysis human’s mood changes.更多还原