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分析超音速车辆成像领域内的航空光学效应

Jian Chen, Dapeng Tian, Ping Jia

|August 13, 2025

概括

超音速车辆成像受到整个视野 (FOV) 的航空光学效应的影响. 一个新的模型分析了这些效应,揭示了沿轨和横轨成像方向的不同偏差趋势.

科学领域:

航空航天工程航空航天工程
光学物理学的光学物理学
流体动力学流体动力学

背景情况:

超音速车辆面临着影响成像系统的航空光学效应带来的重大挑战.
之前的研究主要集中在近轴区域,忽视了整个成像场的空中光学影响.
了解整个视野 (FOV) 的这些影响对于先进的超音速车辆设计至关重要.

研究的目的:

开发一种新的视野 (FOV) 模型,用于分析超音速车辆中的空中光学效应.
为整个FOV建立一个全面的分析方法,用于整个FOV的航空光学效应.
为了研究沿轨和横轨成像方向的明显偏差特征.

主要方法:

开发一个视野 (FOV) 模型,允许在没有特定光学系统参数的情况下直接取场角采样.
在已建立的FOV模型中,应用一项针对航空光学效应的综合分析方法.
模拟和分析一个凸圆超音速车辆与洞窗户作为一个典型的案例研究.

主要成果:

空中光学偏差在沿轨和横轨FOV之间表现出不同的分布特征和趋势.
这些差异归因于不同方向的落入射线所遇到的不同不均的流体结构.
经过中央偏差的校正后,发现清晰的成像角度为-3.89°至0.56° (沿轨) 和-2.78°至2.78° (横轨).

结论:

拟议的FOV模型和分析方法有效地描述了整个成像领域的航空光学效应.
航空光学偏差的方向差异是显著的,并且取决于车辆的几何和流场.
这些发现为优化超音速车辆成像系统性能提供了关键的见解.

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