摘要
对试验数据进行曲线拟合是发动机特性试验的一个重要内容。为此,采用正交多项式最小二乘拟合法,运用MATLAB语言强大的数据处理和绘图功能,进行曲线拟合与绘图,可提高工作效率和试验精度,为拟合和绘制发动机特性曲线提供了较好的方法。
Curve fitting of test data is an important content of engine performance test. By using the least square perpendicular polynomial fitting method and MATLAB＇s high performance on signal processing and graphics drawing, this paper made fitting and drawing curve. Using this method could enhance the working efficiency and test accuracy, and provide a useful method for fitting and drawing the engine performance characteristics curve.
出处
《农机化研究》
北大核心
2006年第10期218-221,共4页
Journal of Agricultural Mechanization Research
关键词
动力机械工程
发动机特性曲线
数学拟合
数据处理
MATLAB
正交多项式
power and machinery engineering
performance characteristics curve of engine
mathematic curve fitting
data processing
MATLAB
perpendicular polynomial
