中文说明：
与理论分析结果相比，数据模型归一化，模态振动，包括随机梯度算法，相对梯度算法，基于SVPWM的三电平逆变的matlab仿真，车牌识别定位程序的部分功能，ICA（主分量分析）算法和程序。
English Description：
Compared with the results of theoretical analysis, data model normalization, modal vibration, including random gradient algorithm, relative gradient algorithm, matlab simulation of three-level inverter based on SVPWM, partial functions of license plate recognition and location program, ICA (principal component analysis) algorithm and program.