一种基于BP算法学习的小波神经网络，网络隐层采用框架小波函数、输出层采用Sigmoid 激励函数, 并选用“熵误差函数”以加速网络的学习速度。-BP learning algorithm based on wavelet neural network, the network hidden layer using the fr a mework of wavelet function, the output layer using Sigmoid activation function, and