Radiation effect of aerodynamically heated optical dome on airborne infrared system

Time Characteristics of the Imaging Quality Degradation Caused by Aero-Optical Effects Under Hypersonic Conditions

“…In a hypersonic condition, the heating of the optical window to a high temperature will lead to the emission of a large amount of infrared radiation, which is nothing but the aero-thermal radiation effect. In the calculation of thermal radiation illuminance, the optical window is not only a medium for signal transmission but also a radiation source [6], [8]. A schematic showing the radiation transmission is given in Fig.…”

“…Chen et al investigated the effect of the aero-optical transmission of a faceted dome on the deterioration of the imaging quality [4]. Wang et al studied how an airborne infrared detection system was influenced by the aero-thermal radiation of the optical dome that was heated aerodynamically [8]. In the case of an airborne IR-optical system, Liu et al investigated the joint aero-optical transmission effect of the optical window (aerodynamically heated) and the aerodynamic flow field (non-uniform) on the imaging quality [9].…”