基于OpenGL和大气传输光学分析的3维全数字仿真是激光跟瞄系统的重要研究手段。为提高跟踪和瞄准精度, 从激光跟瞄仿真系统整体出发, 研究了目标成像中的投影变换、成像与跟踪的关系、高精度跟踪现有算法的控制过程仿真等内容, 并提出了基于大视口、目标大气传输图像序列的跟瞄仿真技术。说明了仿真系统中跟瞄精度分析的特点。就某仿真场景, 设计了“头部顶点”和“两点提取”两种跟瞄方法, 在不同大气湍流条件下得到了它们的跟瞄精度, 说明应用该激光跟瞄仿真系统, 能够预先设计、测试和验证一些跟瞄方法, 帮助进行算法分析和改进, 从而提高工作效率和节约成本。

Three-dimensional whole digital simulation is an important research tool for laser tracking and pointing system. In view of the whole laser tracking and pointing simulation system, problems such as projection transform of target’s imaging, relation of imaging and tracking, control process’s simulation of the existing methods are studied for improving accuracy. A tracking and pointing simulation technology based on a kind of imaging series is discussed, and the kind of imaging series has big viewports and considers the effect of atomosphere transfer. Characteristics of accuracy analysis in simulation system are also illustrated. In a simulation scene, two methods are designed, which are named vertex-of-head tracking and pointing method and two-point-acquiring tracking and pointing method. Their tracking and pointing accuracy is obtained under atmospheric turbulence of different intensity. These results illustrate that the laser tracking and pointing simulation system is useful in design, test and validation of some tracking and pointing methods.