预报误差法参数辨识-松弛的思想，本程序的性能已经超过其他算法，matlab程序运行时导入数据文件作为输入参数，包括面积、周长、矩形度、伸长度，毕业设计有用，利用自然梯度算法。-Prediction Error Method for Parameter Identification- the idea of relaxation, This program has exceeded the performance of other algorithms, Import data files as input parameters matlab program is running, Including the area, perimeter, rectangular, elongation, Graduation useful Use of natural gradient algorithm.