scholarly journals Analog Circuit Soft Fault Diagnosis Based on Chaotic Neural Network

2016 ◽  
Author(s):  
Meirong Liu ◽  
Li Zeng ◽  
Liwei Zhang ◽  
Yigang He
Keyword(s):  
Neural Network ◽  
Fault Diagnosis ◽  
Analog Circuit ◽  
Chaotic Neural Network ◽  
Soft Fault ◽  
Soft Fault Diagnosis

Adaptive BP Wavelet Neural Network Method for Soft Fault Diagnosis in Analog Circuit

2013 ◽  
Vol 307 ◽  
pp. 327-330
Author(s):  
Wei Cong ◽  
Bo Jing ◽  
Hong Kun Yu
Keyword(s):  
Neural Network ◽  
Fault Diagnosis ◽  
Adaptive Learning ◽  
Analog Circuit ◽  
Wavelet Neural Network ◽  
Learning Ability ◽  
Time Frequency ◽  
Soft Fault ◽  
Time Frequency Localization ◽  
Soft Fault Diagnosis

Because of the diversity and complexity of soft fault in analog circuit, the rapid and accurate diagnosis is very difficult. For this, an adaptive BP wavelet neural network diagnosis method of soft fault is proposed. It combines the time-frequency localization characteristics of wavelet and the self-learning ability of neural network in soft fault diagnosis of analog circuit, and by introducing the adaptive learning rate the diagnosis ability of BP wavelet neural network model can effectively be improved. In addition, PSPICE software is used to obtain the simulation data of actual analog circuit for the experiment. The results also verify the validity of the proposed method.

Tolerance Analog Circuit Hard Fault and Soft Fault Diagnosis Based on Particle Swarm Neural Network

2013 ◽  
Vol 712-715 ◽  
pp. 1965-1969 ◽  
Author(s):  
Bao Ru Han ◽  
Jing Bing Li ◽  
Heng Yu Wu
Keyword(s):  
Neural Network ◽  
Fault Diagnosis ◽  
Adaptive Learning ◽  
Bp Neural Network ◽  
Analog Circuit ◽  
Fitness Function ◽  
Particle Swarm ◽  
Particle Swarm Algorithm ◽  
Soft Fault ◽  
Soft Fault Diagnosis

This paper presents a tolerance analog circuit hard fault and soft fault diagnosis method based on the BP neural network and particle swarm optimization algorithm. First, select the mean square error function of BP neural network as the fitness function of the PSO algorithm. Second, change the guidance of neural network algorithms rely on gradient information to adjust the network weights and threshold methods, through the use of the characteristics of the particle swarm algorithm groups parallel search to find more appropriate network weights and threshold. Then using the adaptive learning rate and momentum BP algorithm to train the BP neural network. Finally, the network is applied to fault diagnosis of analog circuit, can quickly and effectively to the circuit fault diagnosis.

Soft-Fault Diagnosis of Analog Circuit with Tolerance Using FNLP

2010 ◽  
Vol 17 (3) ◽  
Author(s):  
Wei Zhang ◽  
Longfu Zhou ◽  
Yibing Shi ◽  
Chengti Huang ◽  
Yanjun Li
Keyword(s):  
Fault Diagnosis ◽  
Analog Circuit ◽  
Soft Fault ◽  
Soft Fault Diagnosis

Research on WNN soft fault diagnosis for analog circuit based on adaptive UKF algorithm

2017 ◽  
Vol 50 ◽  
pp. 252-259 ◽  
Author(s):  
Gan Xu-sheng ◽  
Gao Wen-ming ◽  
Dai Zhe ◽  
Liu Wei-dong
Keyword(s):  
Fault Diagnosis ◽  
Analog Circuit ◽  
Soft Fault ◽  
Soft Fault Diagnosis
Sign in / Sign up

Export Citation Format

Share Document