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最小二乘法求作拟合直线
引用本文:解同信.最小二乘法求作拟合直线[J].北京工业职业技术学院学报,2006,5(3).
作者姓名:解同信
作者单位:北京工业职业技术学院,北京,100042
摘    要:静态测试中,检测系统可以在一定的区间内用一个线性函数表达测试数据的变化规律,确定此线性函数即拟合直线的方法常采用最小二乘法.机械工程中,通过对应变测试可以分析与研究零件或结构的受力状况以及工作状态.根据实验输入输出测试数据,用最小二乘法求解拟合直线方程,以此计算的测量误差,均未超出测试数据的极限偏差.

关 键 词:最小二乘法  拟合直线  输入输出特性  检测系统

Straight Line Fitted by Minimum Two Multiplications
Xie Tongxin.Straight Line Fitted by Minimum Two Multiplications[J].Journal of beijing vocational & technical institute of industry,2006,5(3).
Authors:Xie Tongxin
Abstract:The linear function can express the transformation rule of test data in a definite range in check system.The method of fitting the straight line or experience formula is usually the minimum two multiplications.The enduring and working state of the parts and its structure can be analyzed and researched by testing in mechanical engineering.The experiments can input and output testing data and we can get the result of the beeline equation by the minimum two multiplications.The deviation calculated this way does not overstep the limit windage of testing data.
Keywords:minimum two multiplication  fitting straight line  input &output characteristics  examination system  
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