摘要
伴随着飞行器飞行速度的不断增加,高速光学头罩技术具有极大的应用潜力和前景.只是,高速光学头罩在大气层中飞行,受到气动光学效应的影响,成像目标会出现畸变、抖动、模糊和能量衰减,影响成像精度.通过对数十年来高速光学头罩流体力学和气动光学效应的总结和梳理,初步构建了高速光学头罩气动光学效应相似准则模型.归纳了气动光学效应抑制的主要技术路线以及目前已经开展的一些工作.最后总结和讨论了高速光学头罩气动光学效应关键技术难点及未来的发展趋势,可为今后的气动光学效应研究提供一些参考和帮助.
With the increase of the aircraft flight speed,high-speed optical dome has great application potential and prospect.However,due to the influence of aero-optical effect,distortion,jitter,blur and energy attenuation may appear in the imaging targets,which will affect the imaging accuracy.By summarizing the aerodynamics and aero-optics of optical dome in recent decades,a scaling law for aero-optics of high-speed optical dome was preliminarily constructed.The main technical route of aero-optical efffect control and some recent works were also summarized.Finally,the key technical difficulties and future development trend of high-speed optical dome were summarized and discussed,which can provide some reference and help for the research of aero-optical effect in the future.
作者
丁浩林
易仕和
DING Hao-lin;YI Shi-he(College of Aerospace Science and Enginnering, National University of Defenes Technology, Changsha 410073, China)
出处
《气体物理》
2020年第3期1-29,共29页
Physics of Gases
基金
国家自然科学基金(11527802,11832018)
湖南省研究生科研创新项目(CX20190010)。
