2006, Volume 8, Issue 11
Strategic Study of CAE >> 2006, Volume 8, Issue 11
An Engineering Method to Calculate Transmitting Effect of Aero-optics for Hypersonic Interceptor
China Aerospace Science & Industry Corporation , Beijing 100039, China
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Abstract
Transmitting effects of aero-optics is very important to optical imaging probing system of interceptor, as it may cause displacement, jitter and blurring of image to receive for the system. The optic transmitting characteristics is analyzed when target ray goes though turbulence flow. The engineering model for optical transmitting characteristics of flow is built up and empirical model for optical imaging system induced by aero-optic transmitting effects is described. The displacement, jitter and blurring are simulated. The numerical simulation results suggest that transmitting effect of aero-optics has powerful influence on the imaging probing system, which is related to flight parameters, imaging system parameters and integration periods of imaging probing system, etc.
Keywords
aerodynamics ; turbulent flows ; optics ; aero-optics ; transmitting effect
Figures
图1 流场与光学系统成像关系
图2 细分各子区间的坐标定义
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