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本文从单个探测器的几何分辨率出发,并考虑到大气传输损失对系统信噪比的影响,提出了热成象系统对面目标的极限作用距离的近似解,并对目标和背景的辐射亮度的计算方法进行了详尽的讨论。最后,作为一个例子,计算了某一实际热成象系统的极限作用距离。
Based on the geometric resolution of a single detector and considering the influence of atmospheric transmission loss on the signal to noise ratio of the system, an approximate solution of the limit action distance of the opposite target from the thermal imaging system is proposed. The radiation intensity of the target and the background The calculation method is discussed in detail. Finally, as an example, the limit of action for an actual thermal imaging system is calculated.