Artificial neural network(ANN) was utilized with back-propagation algorithm (BPA), and the combination of PCA/LDA with ANN improved the identification performance of the system.

• 设计了采用误差反传算法Back-propagation Algorithm,BPA)的前向人工神经网络(Artificial Neural Network,ANN)，并指出其应用中存在的问题，提出了改进建议； 利用PCA/LDA与ANN相结合的方法改善了系统的识别性能。