空间光学遥感器太阳光照分析计算方法的研究

本文针对空间光学遥感器的太阳光照分析问题,综合考虑现有的研究技术和基础,介绍并比较了3种常用方法的优缺点,并根据空间遥感器镜面反射与漫反射情形并存的情况,提出了一种新的计算思路,即揉合了辐射度法和光线跟踪法的光照图法.根据这个思路在VC中建立仿真计算软件,并以FY-4大气垂直探测仪模型为例,定量计算了其光机结构主要部件的太阳光照仿真数据.

Study of Method for Analyzing and Calculating Solar Illumination on Space Optical Remote Sensor

In order to analyze the solar illumination on a space optical remote sensor, the current related research techniques and basis are investigated comprehensively. Three common analysis and calculation methods are presented and their advantages and disadvantages are compared with each other. In view of the complex environment in which both specular reflection and diffuse reflection exist, a new calculation idea which utilizes a lighting mapping system including a radiosity mapping system and a ray-tracing system is proposed. According to this new calculation idea, a simulation software for calculating the solar illumination on a space optical remote sensor is established and used to numerically simulate the solar illumination data of some optical elements in an atmosphere vertical sounder to be used for FY-4 meterological satellite.