A recognition system for a heart sound wavelet neural network

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (3) : 1-6.

CHENG Xiefeng1,2,FU Nüting1,CHEN Yin1,ZHANG Xuejun1,HUANG Liya1

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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.

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heart sound / recognition / heart sound wavelet neural network

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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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