摘要
提出了一种用支持向量机热电偶校正非线性误差的原理和方法。该算法只依据样本就可以正确辩识热电偶逆模型特征,而不需关于逆模型函数形式的任何先验知识,并将原问题转化为一个凸二次优化问题,能够保证找到的极值解就是全局最优解,具有较好的泛化能力。最后通过对 K 型分度号镍铬-镍硅的热电偶进行非线性校正的应用表明,该算法可取得较好的效果。
Principle and method of correcting nonlinear inaccuracy of thermoelement base on the support vector machine is given.The algorithm can identify the contrary model characteristic of thermoelement correctly only according to the sample,having no need for any priori knowledge about contrary model function,and also convert original problem into protruding quadratic question of optimizing.The algorithm can ensure that extremum solution is optimal and have ability of common.In the end,through using in application of nickel-chromium and nick- el-silicon thermoelement,the algorithm can make better result.
出处
《电气自动化》
北大核心
2004年第5期68-70,共3页
Electrical Automation
基金
安徽省科技厅国际合作资助项目(0208800)
关键词
支持向量机
热电偶
非线性误差
校正
support vector machine
thermoelement
nonlinear inaccuracy
correction
