基于Zemax的探测激光气动光学畸变快速仿真

郑勇辉; 孙华燕; 赵延仲; 张令军

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基于Zemax的探测激光气动光学畸变快速仿真

郑勇辉, 孙华燕, 赵延仲, 张令军

文章导航 > 红外与激光工程 > 2015 > 44(S1): 80-85

郑勇辉, 孙华燕, 赵延仲, 张令军. 基于Zemax的探测激光气动光学畸变快速仿真[J]. 红外与激光工程, 2015, 44(S1): 80-85.

引用本文:

郑勇辉, 孙华燕, 赵延仲, 张令军. 基于Zemax的探测激光气动光学畸变快速仿真[J]. 红外与激光工程, 2015, 44(S1): 80-85.

Zheng Yonghui, Sun Huayan, Zhao Yanzhong, Zhang Lingjun. Fast aero-optical distortion simulation of the detection laser based on Zemax[J]. Infrared and Laser Engineering, 2015, 44(S1): 80-85.

Citation:

Zheng Yonghui, Sun Huayan, Zhao Yanzhong, Zhang Lingjun. Fast aero-optical distortion simulation of the detection laser based on Zemax[J]. Infrared and Laser Engineering, 2015, 44(S1): 80-85.

基于Zemax的探测激光气动光学畸变快速仿真

1.
装备学院光电装备系,北京 101416;
2.
北京指挥控制中心,北京 100093

基金项目:

国家自然科学基金(61302183)

详细信息

作者简介:
郑勇辉(1987-),男,博士生,主要从事激光主动探测、光电信息处理方面的研究。Email:yonghui1987@163.com

中图分类号: TN249

Fast aero-optical distortion simulation of the detection laser based on Zemax

1.
Department of Photoelectric Equipment,Equipment Academy,Beijing 101416,China;
2.
Beijing Aerospace Command and Control Center,Beijing 100093,China

摘要: 基于猫眼效应的激光主动探测技术在防空反导作战中具有广阔的应用前景,而飞机、导弹等目标的气动绕流场对入射和反射光的畸变效应研究是回波特性分析的重要内容。针对探测激光猫眼镜头传输和双重气动流场传输这一复杂物理过程,提出了一种基于Zemax的气动光学畸变快速仿真计算方法。首先利用有限元思想,根据折射率梯度对气动绕流场进行分层,再由标准二次曲面、偶次非球面和Zernike相位曲面对各层空间曲面进行拟合,进而建立多个不同折射率的Zemax透镜组模型,加入成像光学镜头模型即可建立光束入射和散射传输全过程的Zemax模型。以某型号导弹模型为例开展了气动流场计算和Zemax光传输畸变计算,并与光线追迹计算结果进行了比较,证实了此快速计算方法的可行性。
- 激光探测 /
- 气动光学 /
- 快速仿真 /
- 光线追迹
Abstract: The cat-eye effect based active laser detection technique has a broad prospect in antimissile and air defense field, while the distortion effect on the incident and reflected waves caused by aerodynamic flow field around the planes and missiles is an important part of the echo wave characteristic analysis. Facing the complicated physical process of the laser waves in the cat-eye lenses and aerodynamic flow field both in the incidence and reflection propagation, a Zemax based aero-optical distortion calculation method was proposed. Firstly, based on finite element theory, the aero-optical flow field was divided into multiple layers according to the refractive index gradient. Secondly, curve surface fitting of the interfaces between the layers was done with standard, even asphere and Zernike polynomial surface, then a multilayer lens group model with different refractive index was established in Zemax, and the whole incidence and reflection Zemax model was accomplished with imaging optical system added in. Take a typical missile model as the example, the computational fluid dynamics and optical propagation distortion simulation in Zemax were performed, the feasibility of this method was validated after comparing with the analytical results of ray tracing.
- laser detection /
- aero-optic /
- fast simulation /
- ray tracing

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基于Zemax的探测激光气动光学畸变快速仿真

1. 装备学院光电装备系,北京 101416;

2. 北京指挥控制中心,北京 100093

作者简介:
郑勇辉(1987-),男,博士生,主要从事激光主动探测、光电信息处理方面的研究。Email:yonghui1987@163.com

收稿日期: 2015-10-05
修回日期: 2015-12-03
刊出日期: 2016-01-25

基金项目:

国家自然科学基金(61302183)

中图分类号: TN249

关键词:

摘要: 基于猫眼效应的激光主动探测技术在防空反导作战中具有广阔的应用前景,而飞机、导弹等目标的气动绕流场对入射和反射光的畸变效应研究是回波特性分析的重要内容。针对探测激光猫眼镜头传输和双重气动流场传输这一复杂物理过程,提出了一种基于Zemax的气动光学畸变快速仿真计算方法。首先利用有限元思想,根据折射率梯度对气动绕流场进行分层,再由标准二次曲面、偶次非球面和Zernike相位曲面对各层空间曲面进行拟合,进而建立多个不同折射率的Zemax透镜组模型,加入成像光学镜头模型即可建立光束入射和散射传输全过程的Zemax模型。以某型号导弹模型为例开展了气动流场计算和Zemax光传输畸变计算,并与光线追迹计算结果进行了比较,证实了此快速计算方法的可行性。

English Abstract

Fast aero-optical distortion simulation of the detection laser based on Zemax

1. Department of Photoelectric Equipment,Equipment Academy,Beijing 101416,China;

2. Beijing Aerospace Command and Control Center,Beijing 100093,China

Received Date: 2015-10-05
Rev Recd Date: 2015-12-03
Publish Date: 2016-01-25

Keywords:

Abstract: The cat-eye effect based active laser detection technique has a broad prospect in antimissile and air defense field, while the distortion effect on the incident and reflected waves caused by aerodynamic flow field around the planes and missiles is an important part of the echo wave characteristic analysis. Facing the complicated physical process of the laser waves in the cat-eye lenses and aerodynamic flow field both in the incidence and reflection propagation, a Zemax based aero-optical distortion calculation method was proposed. Firstly, based on finite element theory, the aero-optical flow field was divided into multiple layers according to the refractive index gradient. Secondly, curve surface fitting of the interfaces between the layers was done with standard, even asphere and Zernike polynomial surface, then a multilayer lens group model with different refractive index was established in Zemax, and the whole incidence and reflection Zemax model was accomplished with imaging optical system added in. Take a typical missile model as the example, the computational fluid dynamics and optical propagation distortion simulation in Zemax were performed, the feasibility of this method was validated after comparing with the analytical results of ray tracing.