数字图像注入式红外捕获跟踪闭环仿真试验探讨

外场动态飞行和内场仿真是红外捕获跟踪系统的两种试验方法。由于注入式仿真试验不受红外景像转换器等关键器件的制约,投资少、见效快,成为有限条件下的理想试验手段。红外捕获跟踪系统闭环仿真试验的关键技术是闭环构建和红外图像仿真。将被试系统编码盘输出数据和目标运动方程综合处理,控制闭环系统的延时,精确仿真目标像素位置,是保证闭环构建逼真度的主要途径;采用实测数据和理论计算相结合,是保证红外图像仿真逼真度的关键。本文介绍仿真试验系统组成,并就以上两关键技术进行分析、论证。

Study on Loop-Locked IR Capturing and Tracking Simulation Based on Digital Image Injection

For a long time, dynamic test in outfield and simulation are two main methods in evaluating IR capturing and tracking systems. Simulation based on digital image injection is by far the ideal one because it is effective and can waive the limit of IR scene projector aside. The composition and working principle of loop-locked IR capturing and tracking simulation test system are hereby briefly described in this paper, with emphases on the two key points in the realization of this system, locked-loop construction and IR digital image generation. By manipulating the output data from coder, the movement equation of objectives, and the time-lapse, the accuracy of the locked-loop is ensured. By combining theory data with data from survey, the fidelity of the IR digital images is ensured.