光电经纬仪目标光学特性模型构建方法研究

Research on target optical characteristic model construction method for photoelectric theodolite

光电经纬仪训练存在的主要问题是缺乏合作目标,训练针对性不强。通过对目标、装备和实际需求的分析,提出了基于目标三维模型及目标光学特性处理的光电经纬仪目标光学特性模型的构建方法。弹体等刚性部件的三维模型利用二次曲面、多边形等简单的几何体设计、构建、绘制,尾焰三维模型则利用随机过程函数控制的粒子系统来实现对目标可见光与红外成像特性分别利用纹理映射技术和红外辐射理论进行成像特性处理.重点对导弹蒙皮、尾喷口及尾焰3个部分的红外辐射特性进行了分析,并给出了对应的灰度映射模型。利用该方法模拟生成的目标接近实战,针对性强,成功应用于光电经纬仪训练,效果良好,已得到推广应用。

The main problem exists in the training of photoelectric theodolite is the lack of cooperation goals and the training is not targeted. Through the analysis of target, equipment and actual demand. the construction method of the photoelectric theodolite target optical characteristic modelbased on target three-dimensionalmodel and target optical characteristics processing is proposed. The three-dimensionalmodel of the elastic parts like the missile body is designed, constructed and drawn using simple geometry such as quadrics and polygons in the OpenGL library.The three-dimensionalmodel of the tail flame is realized by the particle system controlled by the stochastic process function. Target imaging characteristics processing using the texture mapping technique and infrared radiation theory for the visible-light and infrared imaging characteristics respectively. The infrared radiation characteristics of the missile skin, tail nozzle and tail flame are analyzed, and the corresponding grayscale mapping model is given. The target simulated and produced by this method is close to reality and precision targeted. It has been successfully applied to the photoelectric theodolitetraining with good results and has been popularized.