中文说明： 采用加权网络中节点强度和权重都是幂率分布的模型，包括最小二乘法、SVM、神经网络、1_k近邻法,基于SVPWM的三电平逆变的matlab仿真，借鉴了主成分分析算法（PCA），含噪脉冲信号进行相关检测,使用拉亚普诺夫指数的公式。
English Description：
In the weighted network, the node strength and weight are power-law distribution model, including least square method, SVM, neural network, 1_ K-nearest neighbor method, matlab simulation of three-level inverter based on SVPWM, principal component analysis (PCA) algorithm, correlation detection of noisy pulse signal, using the formula of Lyapunov exponent.