一种心音小波神经网络识别系统

成谢锋1,2 傅女婷1 陈胤1 张学军1,2 黄丽亚1

振动与冲击 ›› 2017, Vol. 36 ›› Issue (3) : 1-6.

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (3) : 1-6.
论文

一种心音小波神经网络识别系统

  • 成谢锋1,2  傅女婷1   陈胤1  张学军1,2   黄丽亚1
作者信息 +

A recognition system for a heart sound wavelet neural network

  • CHENG Xiefeng1,2,FU Nüting1,CHEN Yin1,ZHANG Xuejun1,HUANG Liya1
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文章历史 +

摘要

设计一种心音小波神经网络识别系统,将心音特征抽取、有针对性的神经网络层次化架构和分类识别融合一体,以解决复杂条件下的心音分类识别问题。本文首先提出基于心音小波神经网络的识别模型,然后讨论如何构造心音小波和心音小波神经网络的方法,重点讨论在网络结构的隐含层中引入心音小波作为激活函数的算法,从而获得一种把心音的针对性学习和心音识别技术高度融合的心音小波神经网络识别系统;最后通过选取正常心音信号与早搏心音信号作为实验对象,验证了心音小波神经网络识别系统的有效性和实用性,并且通过与morlet和Mexican-hat小波神经网络识别系统相比较,证明心音小波神经网络识别系统在收敛性、算法速度上呈现明显的优越性。

Abstract

Here, a recognition system for a heart sound wavelet neural network was designed, with it heart sound features were extracted, the neural network structure was layered, identified and classified to solve the problem of heart sound classification recognition under complicated conditions. Firstly, a recognition model based on heart sound wavelet neural network was proposed. Then the method to construct heart sound wavelet and heart sound wavelet neural network was discussed. The algorithm for introducing heart sound wavelet as the activation function of neural network hidden layer was discussed specially to obtain a recognition system of heart sound wavelet neural network highly fusing heart sound targeted learning and heart sound recognition technique. Finally, normal heart sound signals and beats heart sound signals were selected as the test objects and to verify the effectiveness and practicality of a heart sound wavelet neural network recognition system. Compared with Morlet wavelet neural network recognition system and Mexican hat wavelet neural network recognition system, it was shown that the heart sound wavelet neural network recognition system is superior in convergence and alrorithm speed.

关键词

心音 / 识别 / 心音小波神经网络

Key words

heart sound / recognition / heart sound wavelet neural network

引用本文

导出引用
成谢锋1,2 傅女婷1 陈胤1 张学军1,2 黄丽亚1 . 一种心音小波神经网络识别系统[J]. 振动与冲击, 2017, 36(3): 1-6
CHENG Xiefeng1,2,FU Nüting1,CHEN Yin1,ZHANG Xuejun1,HUANG Liya1. A recognition system for a heart sound wavelet neural network[J]. Journal of Vibration and Shock, 2017, 36(3): 1-6

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