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长波红外相机多次采样叠加对MTF的影响分析

Keywords: 红外焦平面阵列多次采样累加调制传递函数红外相机

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Abstract:

根据长波红外相机积分时间短的特点,阐述了多次采样叠加技术的原理和应用,并在此基础上分析了采用多次采样叠加技术对系统MTF产生的影响,给出了不同采样系数和叠加次数对应的系统MTF变化,当采样系数固定时,探测器MTF随叠加次数的增加而减小,系统推扫方向MTF随叠加次数的增加而减小。

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