在红外制导系统中，大气衰减作用对红外探测有重要影响。

In an infrared guidance system, the atmosphere attenuation has an significant influence on infrared detection.

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在红外制导系统中，目标检测技术能够提供目标的形状和位置信息，成为必不可少的关键技术之一。

Target detection technology is one of the key issues in the infrared guidance system, because it can offer the location and shape information of target.

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