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海天背景多光谱成像特性仿真

何晓雨 许小剑

何晓雨, 许小剑. 海天背景多光谱成像特性仿真[J]. 北京航空航天大学学报, 2014, 40(12): 1780-1785. doi: 10.13700/j.bh.1001-5965.2014.0009
引用本文: 何晓雨, 许小剑. 海天背景多光谱成像特性仿真[J]. 北京航空航天大学学报, 2014, 40(12): 1780-1785. doi: 10.13700/j.bh.1001-5965.2014.0009
He Xiaoyu, Xu Xiaojian. Multispectral imaging simulation of sea-sky background scene[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(12): 1780-1785. doi: 10.13700/j.bh.1001-5965.2014.0009(in Chinese)
Citation: He Xiaoyu, Xu Xiaojian. Multispectral imaging simulation of sea-sky background scene[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(12): 1780-1785. doi: 10.13700/j.bh.1001-5965.2014.0009(in Chinese)

海天背景多光谱成像特性仿真

doi: 10.13700/j.bh.1001-5965.2014.0009
详细信息
    作者简介:

    何晓雨(1991-),男,江西南昌人,硕士生, xiaoyuhe91@163.com.

  • 中图分类号: TN215

Multispectral imaging simulation of sea-sky background scene

  • 摘要: 采用红外传感器观测海面,若观测天顶角较大,则视场中会同时出现海面与天空背景.通过计算传感器每一像素单元接收的辐射强度,可以得到海天背景多谱段光学图像.为了计算假定海况条件下海面随观测方向变化的反射辐射,基于几何光学原理修正了传统海面辐射特性模型.由于路径长度随传感器垂直视场变化,此时大气对辐射传输的影响十分显著.天光及水平路径辐射采用改进的大气辐射传输模型计算.该模型具有更高的光谱分辨率,适用于多谱段成像仿真.基于给出的海面辐射特性模型和大气辐射传输模型,分别仿真了不同时刻不同观测角下可见光、中波红外和长波红外的海天背景辐射图像.仿真结果符合物理原理,与实测图像的对比验证了新模型的可靠性.

     

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出版历程
  • 收稿日期:  2014-01-09
  • 刊出日期:  2014-12-20

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