CAJ | 학술논문

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。
문장천술MATLAB적곡선의합공구상(Curve Fitting Toolbox)적교호식도형계면화정서조용량충방식적사용방법，병이모시유발동궤은태공황하적시험수거회제만유특성도위례，개소이용곡선의합공구상진행곡면의합적보취화방법，병급출관건대마，탐토이용해공구상개진의합효과화회도질량。대의합결과적수리통계교험표명의합결과완전부합요구，MATLAB적곡선의합공구상위발동궤특성적곡면의합제공경대적편리。
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.