摘要
文章阐述MATLAB的曲线拟合工具箱(Curve Fitting Toolbox)的交互式图形界面和程序调用两种方式的使用方法,并以某柴油发动机稳态工况下的试验数据绘制万有特性图为例,介绍利用曲线拟合工具箱进行曲面拟合的步骤和方法,并给出关键代码,探讨利用该工具箱改进拟合效果和绘图质量.对拟合结果的数理统计校验表明拟合结果完全符合要求,MATLAB的曲线拟合工具箱为发动机特性的曲面拟合提供更大的便利.
It discusses the interactive graphical interfaces and routine call of MATLAB curve fitting toolbox. Taking the universal characteristic map plotting of a diesel engine under a steady-state condition as an example, it introduces the procedures and methods of surface fitting with curve fitting toolbox and key codes are provided. Methods are discussed on how to improve the imitative effect and the drawing quality. The results show that the fitting accuracy is very high;MATLAB curve fitting toolbox can provide much convenience to the surface fitting.
出处
《湖北文理学院学报》
2014年第5期24-28,共5页
Journal of Hubei University of Arts and Science
基金
湖北汽车工业学院汽车动力传动与电子控制湖北省重点实验室开放基金项目(ZDK201205)
