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海面太阳耀光背景下的偏振探测技术

张卫国

张卫国. 海面太阳耀光背景下的偏振探测技术[J]. 中国光学(中英文), 2018, 11(2): 231-236. doi: 10.3788/CO.20181102.0231
引用本文: 张卫国. 海面太阳耀光背景下的偏振探测技术[J]. 中国光学(中英文), 2018, 11(2): 231-236. doi: 10.3788/CO.20181102.0231
ZHANG Wei-guo. Application of polarization detection technology under the background of sun flare on sea surface[J]. Chinese Optics, 2018, 11(2): 231-236. doi: 10.3788/CO.20181102.0231
Citation: ZHANG Wei-guo. Application of polarization detection technology under the background of sun flare on sea surface[J]. Chinese Optics, 2018, 11(2): 231-236. doi: 10.3788/CO.20181102.0231

海面太阳耀光背景下的偏振探测技术

doi: 10.3788/CO.20181102.0231
基金项目: 

国家自然科学基金资助项目 61605199

详细信息
    作者简介:

    张卫国(1968—),男,山西原平人,硕士,高级工程师,1999年于中国科学院长春光学精密机械与物理研究所获得硕士学位,主要从事靶场光学测量方面的总体研究。E-mail:zwg222@126.com

  • 中图分类号: O439

Application of polarization detection technology under the background of sun flare on sea surface

Funds: 

National Natural Science Foundation of China 61605199

More Information
  • 摘要: 为了实时抑制太阳耀光对海面目标探测的影响,基于偏振光学理论,设计并构建了一套偏振自适应滤波探测系统。本文介绍了偏振探测系统的功能和组成、偏振探测及背景抑制原理,并给出了该系统的光学设计结果;利用自适应偏振滤波探测系统,通过搭载望远镜跟踪试验平台,针对海上典型目标,开展了相关的偏振验证实验。实验结果表明:海面太阳耀光存在比较明显的偏振特性,采用常规探测手段,探测器极易出现饱和,而利用偏振探测技术则能够有效抑制太阳耀光的影响,进而实现目标的有效探测。

     

  • 图 1  偏振自适应滤波系统的组成及内部连接关系

    Figure 1.  Internal composition and connection in polarization adaptive filtering system

    图 2  偏振系统光路示意图

    Figure 2.  Optical path schematic of polarization system

    图 3  偏振分析仪点列图

    Figure 3.  Spot diagram of polarization analyzer

    图 4  偏振探测仪点列图

    Figure 4.  Spot diagram of polarization detector

    图 5  偏振分析仪MTF曲线图

    Figure 5.  MTF of polarization analyzer

    图 6  偏振探测仪MTF曲线图

    Figure 6.  MTF curves of polarization detector

    图 7  静止目标抑制效果比对图

    Figure 7.  Comparison of suppression effects for static target

    图 8  采用非偏探测时运动目标非耀光区和耀光区非偏效果比对图

    Figure 8.  Comparison of moving target on the non-glare zone and glare zone(non-polarized) by using non-polarization detection

    图 9  采用非偏探测与偏振探测相结合时运动目标非耀光区和耀光区偏振效果比对图

    Figure 9.  Comparison of moving target on the non-glare zone and glare zone(polarized) by combining non-polarizaion and polarization detection technology

    表  1  数据分析结果

    Table  1.   Data analysis results

    观测区域 目标灰度 背景灰度 对比度
    非耀光区 1 174 1 760 0.667
    耀光区(非偏) 1 635 4 136 0.395
    耀光区(偏振) 807 1 428 0.565
    下载: 导出CSV
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出版历程
  • 收稿日期:  2017-11-11
  • 修回日期:  2017-12-13
  • 刊出日期:  2018-04-01

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