不同大气环境下热像仪最大识别距离的三维描述

The Three Dimensional Description of The Maximum Recognition Distance of Thermal Imager under Different Atmosphere

通过建立热像仪最大识别距离dr的计算模型，以及大气衰减系数的数据拟合，提出计算dr的实用简单公式。在实验室内对热像仪进行性能检测时，通过对最小可分辨温差MRTD的测量，即可利用该公式模拟出三维图形来描述不同大气环境下的最大识别距离。

By building a calcuation model for the maximal recognition distance of thermal imager,and data fitting of atmospheric attenuation coefficient, a pratical equation for the maxcognition distance calculation was presented. While MRTD was measured in the lab, this equation can be used to simulate a three dimensional description of the maximal recognition distance under different atmosphere.