多元回归分析在土壤湿度传感器标定中的应用

Application of Polynomial Regression Analysis to Soil-moisture Sensor Calibration

提出了一种应用MATLAB语言/SIMULINK仿真环境来对湿度传感器进行标定的方法,用四次多项式拟合标定曲线,并通过分析所拟合的曲线找出能代表此类传感器的最优曲线方程。此方法同样也适用于其它类型传感器的标定。

In this article, A sign method of moisture- sensor by Matlab will be introduced, we use quartic polynomial to approximate the calibration of curve ,and by analyzing the curve we can get optimal curve equation representing this sort of sensor. The method can be applied to calibration of the other sorts sensors .