基于BP神经网络的温度传感器辐射误差分析  

Radiation error analysis of temperature sensor based on BP neural network

作　　者：蔡晶晶 刘清惓[1,2,3] 戴伟 杨杰[5] CAI Jingjing;LIU Qingquan;DAI Wei;YANG Jie(Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing University of Information Science & Technology,Nanjing 210044,China;School of Electronics and Information Engineering,Nanjing University of Information Science & Technology,Nanjing 210044,China;Jiangsu Key Laboratory of Meteorological Observation and Information Processing,Nanjing University of Information Science & Technology,Nanjing 210044,China;Key Laboratory of MEMS of Ministry of Education,Southeast University,Nanjing 210096,China;School of Atmospheric Physics,Nanjing University of Information Science & Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学江苏省大气环境与装备技术协同创新中心,江苏南京210044 [2]南京信息工程大学电子与信息工程学院,江苏南京210044 [3]南京信息工程大学江苏省气象探测与信息处理重点实验室,江苏南京210044 [4]东南大学MEMS教育部重点实验室,江苏南京210096 [5]南京信息工程大学大气物理学院,江苏南京210044

出　　处：《现代电子技术》2019年第2期22-25,共4页Modern Electronics Technique

基　　金：国家公益性行业(气象)科研专项项目(GYHY200906037);国家公益性行业(气象)科研专项项目(GYHY201306079);国家自然科学基金(41275042);江苏高校优势学科Ⅱ期建设工程项目(PAPD-Ⅱ)资助~~

摘　　要：为了降低太阳辐射对地面温度测量造成的影响,修正太阳辐射误差,文中采用计算流体动力学方法(CFD)仿真得到不同气流速度和太阳高度角下的温度传感器的辐射误差。通过BP神经网络算法对仿真数据进行拟合,获得辐射误差修正方程,实现对测量的地表温度的修正。BP神经网络的拟合结果和仿真结果的均方根误差值为0.05℃。为便于应用该算法求解任意环境参数条件下的温度传感器辐射误差,文中亦设计了一种误差修正软件。The radiation errors of the temperature sensor under different air flow velocities and solar altitude angles are obtained by the simulation adopting the computational fluid dynamics(CFD)method,so as to reduce the influence of solar radiation on ground temperature measurement and correct solar radiation errors. The simulation data is fitted by using the BP neural network algorithm,to obtain the radiation error correction equation,and realize correction of measured ground temperature. The root mean square error between the fitting results of BP neural network and the simulation results is 0.05 °C. An error correction software is also designed in this paper,so as to apply the algorithm to solve the radiation errors of the temperature sensor in any environmental parameter condition.

关 键 词：计算流体动力学 温度传感器 太阳辐射误差 仿真数据 BP神经网络算法 误差修正 

分 类 号：TN820.1-34[电子电信—信息与通信工程]