摘要
Abstract
Modeling infrared radiation characteristics of F35 stealth fighter is presented in this paper. The 3D models of airframe and plume are built based on structure and material data of the stealth fighter. Simulating and caclulating the flow field for airframe and turbofan engine. A temperature field for the skin, a temperature field, a pressure filed and a concentration field of gas species for the plume is caculated. A statistical narrow-band model is constructed with the High-Temperature Molecular Spectroscopic Database(HITEMP). Spectral transmissivity along the LOS are calculated, and the spectral radiance and radiance image of the plume are got. Spectral radiation characteristics and radiation intensity of the whole plane on different azimuth is got after modeling the radiation of nozzle and skin. It is showed that the infrared radiation of the stealth fighter is still powerful, which is caused by the powerful turbofan of the fighter. The infrared image sequences of F35 stealth fighter on the MWIR waveband are generated, which can be used for digital simulation and hardware-in-the-loop simulation for infrared imaging guided weapons development.关键词
F35隐身战斗机/红外辐射特性/窄谱带模型/光谱特性Key words
F35 stealth fighter/infrared radiation characteristics/narrow-band model/spectral characteristics分类
信息技术与安全科学
