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红外焦平面非均匀性噪声的空间频率特性及空间自适应非均匀性校正方法改进

Keywords: 红外焦平面阵列非均匀性校正自适应空间频率

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Abstract:

分析了红外焦平面阵列非均匀性噪声的空间频率特性,指出空间低频噪声为其中的主要成分.利用实际IRF—PA定标数据,也得出了相同结论.针对传统空域自适应校正方法去除低频空间噪声存在的不足,本文提出采用一点校正和空域自适应校正相结合的方法.实验结果表明,新方法在空间低频噪声占优时能获得好的校正效果.

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