目标与背景红外辐射特征的模拟仿真

【作者】 张海；

【导师】 宣益民；

【作者基本信息】 南京理工大学 ， 热能工程， 2002， 硕士

【摘要】 随着红外制导和红外成像制导武器的发展，为了提高武器的性能，在武器的设计和研制阶段就必须对红外导引头的各项指标进行检测，这时需要提供目标和背景的红外特征，本课题正是针对这个需要，制作能够模拟目标和背景红外特征的红外成像目标模拟靶。 模拟靶系统研制过程包括可行性研究、整体设计、初步探索、最终的研制分析等四个阶段，需要从软、硬件两方面考虑。首先是选择模拟靶的元件阵列，并对阵列作热计算，根据元件阵列选择加热方式以及整个系统的控制系统，设计外围电路(着重解决MOS管通大电流的安全工作问题)和相应的控制软件，最后加工得到样机。 将已有目标和背景的红外特征作为数据源，在模拟靶样机上仿真目标和背景，通过红外成像仪，观测成像效果，最终在模拟靶样机上得到目标和背景红外图像的逼真再现。更多还原

【Abstract】 With the development of IR guided system and IR imaging guided weapons, all kinds of parameters of IR seeker would be tested during design and manufacture of the weapons in order to increase the performance of the weapons. IR features of objects and background should be provided for such purposes. It is in urgent need to provide IR features of different objects and/or backgrounds under a variety of situations. This paper is to develop a simulation system of IR features of objects and background.The process of design and manufacture of IR imaging simulation system is composed of four periods including feasibility investigation, whole frame design, primary exploration, final manufacture and analysis. Software and hardware are to be designed in the process. First, the resistor element array used for simulation system is selected and heat design of element array is finished. Second, the control system and heating mode are chosen according to resistor element array, then periphery electro-circuit and control software are carried out. Finally, the prototype of the simulation system is present.IR features data of objects and background calculated from the numerical model are put into the simulation system. The prototype successfully finishes the whole simulation process and shows IR feature of the sample objects and background, which is observed by an IR scanner.更多还原