基于偏振激光辅助照明的ICCD探测技术研究

Journal of Applied Optics(2015)

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Abstract
为了验证偏振激光辅助照明ICCD探测目标的可行性,I以偏振成像探测原理为基础,提出一套基于偏振激光辅助照明的ICCD探测系统。该系统采用808 nm人眼不可见偏振激光辅助照明,ICCD对后向散射激光进行检偏和光电信息转换,实现背景中目标的偏振成像探测。通过在野外环境中对该系统的探测能力进行实验测试,结果表明,在0°、45°和90°检偏角下,人造金属涂漆目标对照射偏振激光退偏小于10%;绿色背景对照射偏振激光退偏度约50%;沙土地面退偏度约30%,人造金属涂漆目标相对于自然背景随检偏角增大图像对比度也越大。
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Key words
polarization laser,polarization degree,ICCD detection
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