In this paper , ar power spectral density estimate by way of burg is provided in analysis and capturing the feature of adventitious respiratory sounds 利用bp神经网络对异常呼吸音进行分类识别,提出了评价人体呼吸系统生理状况的方案,这对分析病人的呼吸系统疾病有重要意义。
To classify these respiratory sounds , the bp ann method is used . the advanced language is inconvenient to digital signal process , so the method of mixed programming matlab and vb is provided . in the design of hardware , mcu and dsp are both working together 在上位机信号分析时,针对数字信号处理算法高级语言编程繁琐的缺点,提出了matlab与vb相结合编程解决呼吸音信号分析的方案,利用dll在matlab与vb间进行数据传递和matlab信号处理工具包的函数算法。