基于红外辐射特性的海面温度研究  

Study of Sea Surface Temperature Based on Infrared Radiation

作　　者：何伟怡 李向春 明德烈 HE Weiyi;LI Xiangchun;MING Delie(School of Automation,Huazhong University of Sci.&Tech.,Wuhan 430074;Academy of the Rocket Force,Beijing 100094)

机构地区：[1]华中科技大学自动化学院,武汉430074 [2]火箭军研究院,北京100094

出　　处：《舰船电子工程》2018年第9期158-162,178,共6页Ship Electronic Engineering

摘　　要：针对海面背景红外辐射特性的研究,海面温度在海面红外辐射能量计算中起着至关重要的作用。论文针对海面热平衡方程中的海面热传导分量进行研究,采用一维傅里叶热传导方程来计算该分量。在求解热平衡方程过程中,首先通过隐式差分方法对方程进行空间和时间维度上离散化,接着将方程转换成矩阵运算形式,然后利用追赶法求解海面温度。最后通过和实测海面温度值进行比较分析,实验表明海面温度计算模型能准确反映海面温度变化情况,满足后续对海面实时仿真的需求。In the study of the infrared radiation characteristics of the sea surface background,the sea surface temperature plays a vital role in the calculation of the infrared radiation energy of the sea surface.In this paper,the heat conduction component in the sea surface heat balance equation is studied,and the one dimensional Fourier heat conduction equation is used to calculate the component.In the process of solving the heat balance equation,first,the implicit difference method is used to discretize the equations in terms of space and time and we transform the equation into a matrix operation form.Then the chase method is used to solve the sea surface temperature.Finally,through comparing and analyzing the measured sea surface temperature,the experiment shows that the sea surface temperature calculation model can accurately reflect the change of sea surface temperature and meet the needs of the real time simulation of the sea surface.

关 键 词：红外辐射特性 海面温度 热平衡方程 隐式差分 追赶法 

分 类 号：TN215[电子电信—物理电子学]