论文部分内容阅读
本文再次介绍的大气调制传递函数公式,包括考虑到成象系统接收到的热背景而引起的对比度降低,对于经过大气后的红外成象来说,这些背景将是重要的。尽管,接收到的目标辐射峰值甚至在8～13微米窗口内,2.0～2.4微米和3.1～4.1微米波段的吸收窗口,包含的大气背景最少,对于表面很光的目标,经过相当长距离的大气成象,可得到最佳分辨率。一般8～13微米窗口对目标热成象较合适,因为目标与大气的温度较接近。
The atmospheric transfer function formula introduced again in this paper, including the reduced contrast due to the thermal background received by the imaging system, will be important for infrared imagery after atmospheric exposure. Although the target radiation peak received is even at the window of 8-13 μm, the absorption window in the 2.0-2.4 μm and 3.1-4.1 μm bands contains the fewest atmospheric backgrounds, and for very bright-surface targets the atmosphere over considerable distances Imaging, you can get the best resolution. The general 8 ~ 13 micron window on the target thermal imaging is more appropriate, because the target temperature is close to the atmosphere.