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亿博体育串子官方入口

张潞, 樊金浩, 鲁宇轩, 张磊, 傅莉

张潞, 樊金浩, 鲁宇轩, 张磊, 傅莉. 亿博体育串子官方入口[J]. 中国光学(中英文). doi: 10.37188/CO.2023-0095
引用本文: 张潞, 樊金浩, 鲁宇轩, 张磊, 傅莉. 亿博体育串子官方入口[J]. 中国光学(中英文). doi: 10.37188/CO.2023-0095
ZHANG LU, FAN Jin-hao, LU Yu-xuan, ZHANG Lei, FU Li. 亿博体育串子网页版[J]. Chinese Optics. doi: 10.37188/CO.2023-0095
Citation: ZHANG LU, FAN Jin-hao, LU Yu-xuan, ZHANG Lei, FU Li. 亿博体育串子网页版[J]. Chinese Optics. doi: 10.37188/CO.2023-0095

亿博体育串子官方入口

doi: 10.37188/CO.2023-0095
基金项目:国家自然科学基金资助项目(No. 61074090);辽宁省教育厅系列项目(No. JYT2020107)
详细信息
    作者简介:

    张 潞(1972—),女,硕士,辽宁西丰人,沈阳航空航天大学讲师,主要研究方向为无线网络安全、密码学、飞行器隐身测试与智能控制等。E-mail:[email protected]

    傅 莉(1968—),辽宁海城人,博士,教授,主要研究方向飞行器隐身测试与智能控制。E-mail:[email protected]

  • 中图分类号:TN219

亿博体育串子网页版

Funds:Supported by National Natural Science Foundation of China (No. 61074090); Liaoning Provincial Department of Education Series Projects (No. JYT2020107)
More Information
  • 摘要:

    壁面的红外反射特性由双向反射分布函数(BRDF)表征和求解。目前BRDF测量需要大量实验数据,同时存在精度不高的问题。通过构建壁面反射特性测试平台,使用MR170型傅立叶红外光谱辐射计获取2~15 μm波段下入射角度和各个反射角度的目标辐射亮度。针对隐身目标,应用RBF网络对3~5 μm以及8~14 μm波段的辐射亮度曲线进行拟合,排除大气干扰,进而求解出上述两个波段隐身目标的BRDF值。为了解决BRDF模型精度不高的问题,提出了改进的鲸鱼优化算法(IWOA),对BRDF模型参数进行反演,并设计了基于BRDF的反射率求解方法。IWOA对BRDF计算模型参数反演有良好的效果。根据反射法,应用所得到的BRDF数据求解得到的反射率为0.5496,相对误差为6.17%,满足工程需求。此研究可为隐身目标壁面的反射特性求解提供帮助。

  • 图 1 不同介质表面反射特性示意图

    Figure 1. Schematic diagram of the surface reflection properties of the different media

    图 2 BRDF计算原理图

    Figure 2. Schematic diagram of the BRDF calculations

    图 3 反射轴亮度测量系统示意图

    Figure 3. Schematic diagram of the radiance measurement system

    图 4 3~5 μm波段反射亮度及BRDF测量值

    Figure 4. Reflection brightness and BRDF measurements in 3~5 μm bands

    图 5 8~14 μm反射亮度及BRDF测量值

    Figure 5. Reflection luminance and BRDF measurements in 8~14 μm bands

    图 6 座头鲸螺旋上升捕食方法示意图

    Figure 6. Schematic diagram of the humpback whale's ascending spiral predation method

    图 7 IWOA算法流程图

    Figure 7. IWOA algorithm flow chart

    图 8 3~5 μm波段IWOA模型改进效果图

    Figure 8. Improved effect of the IWOA model in the 3~5 μm band

    图 9 3~5 μm波段IWOA模型反演结果对比

    Figure 9. Comparison of the inversion results of the IWOA model in the 3~5 μm band

    图 10 8~14 μm波段IWOA模型反演结果对比

    Figure 10. Comparison of the inversion results of the IWOA model in the 8~14 μm band

    图 11 3~5 μm波段3种算法反演结果与真实值对比

    Figure 11. Comparison of the inversion results of three algorithm and actual values in the 3~5 μm band

    图 12 8~14 μm波段3种算法反演结果与真实值对比

    Figure 12. Comparison of the inversion results of three algorithm and actual values in the 8~14 μm band

    图 13 3~5 μm波段反射特性曲线

    Figure 13. Reflection characteristic curve in 3~5 μm bands

    图 14 8~14 μm波段反射特性曲线

    Figure 14. Reflection characteristic curve in 8~14 μm bands

    图 15 光源垂直入射目标壁面的反射亮度包线

    Figure 15. The reflected brightness envelope when the light source incidents vertically on the wall

    表  1 误差计算结果

    Table  1. Error calculation results

    误差函数 3~5 μm
    IWOA GA PSO
    MAE(10−3) 4.4 8 7.5
    R 2 0.9828 0.9494 0.9606
    8~14 μm
    MAE(10−3) 6.1 10.3 9.8
    R 2 0.9797 0.9369 0.9574
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  • 收稿日期: 2023-07-13
  • 录用日期: 2023-11-16
  • 网络出版日期: 2024-01-16

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