General wavelength dependence of imaging through the atmosphere.
General wavelength dependence of imaging through the atmosphere.
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DOI：
10.1364/ao.20.001532
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发表时间：
1981-05
期刊：
影响因子：
1.9
通讯作者：
N. Kopeika
中科院分区：
文献类型：
--
作者：
N. Kopeika
大气MTF配方重申，包括由成像系统接收的热背景的对比度降低。这些背景对红外成像具有重要意义。吸收窗口，如2.0-2.4和3.1-4.1微米的波长，其中包含最小的大气背景，通常允许最佳的分辨率为远距离大气成像的明显明亮的对象，尽管事实上，接收到的对象光束辐射甚至可能在8-13微米窗口的峰值。8-13微米的窗口通常更适合于温度接近大气温度的物体的热成像。
Atmospheric MTF formulations are restated to include contrast reduction by thermal backgrounds received by the imaging system. These backgrounds should be of significance for infrared imaging through the atmosphere. Absorption windows such as 2.0-2.4 and 3.1-4.1-microm wavelengths, which contain minimum atmospheric background, are suggested as usually permitting the best resolution for long range atmospheric imaging of apparently bright objects despite the fact that received object beam radiation may even peak in the 8-13-microm window. The 8-13-microm window is generally better for thermal imaging of objects whose temperatures are close to those of the atmosphere.