Fault Diagnosis of Analog Circuit Based on Multi-Test Points and Multi-Feature Information

摘要

In the process of use BP neural network to fault diagnosis of analog circuits,the network input which represents fault signature was very important.A given new method which base on multi-points and multi-feature information is taken to construct the original sample set.With this method to construct the original fault signature set,then as the input of BP neural network and train the network.Simulation results show that,the network train with sample set which constructed by this method use in fault diagnosis of analog circuits is better accuracy than traditional methods.Proved the feasibility of this method in fault diagnosis of analog circuits,and offer a new method for fault diagnosis of analog circuits.