BP神经网络用于函数拟合与模式识别，相控阵天线的方向图（切比雪夫加权），LDPC码的完整的编译码，重要参数的提取，采用加权网络中节点强度和权重都是幂率分布的模型，一种流形学习算法（很好用）。- BP neural network function fitting and pattern recognition, Phased array antenna pattern (Chebyshev weights), Complete codec LDPC code, Extract important parameters, Using weighted model nodes in the network strength and weight are power law distribution, A fluid manifold learning algorithm (good use).