The paper discusses the questions in operating and training of existent theodolite , and devises an emulational system of training theodolite operator through studying the space - relation between object and theodolite during the objective acutual tracking process . the system is founded two dimension - three dimension spacial coordinate - transform model , and polyfit fight track in basis on the method of subsection cubic spline , and put forword the control method of separating size and direction from speed , realized the all - real simulation of objective flight state . the trainer can input objective position parameter and the characteristic points of objective flight track 本文探讨了现行经纬仪操控训练中存在的问题。通过研究经纬仪对目标实际跟踪过程中目标与经纬仪间的空间关系，设计了一套训练经纬仪操作手的实景仿真系统。该系统建立了二维?三维的空间坐标变换模型；利用分段三次样条插值的方法拟合出了目标飞行轨迹；并对速度的控制提出了一种将速度矢量的大小与方向分离的控制方法，实现了对目标飞行状态的全真模拟。
Implementing the 3 - d visual system of air combat simulation with the help of the computer by using new technologies , such as opengl , visual c + + and oop . the procedures of fighting can be displayed intuitively . at the same time , the flight tracks of simulation can be recorded and analyzed , which helps to analyze and evaluate the performances of the current fighters in service qualitatively and quantitatively 3 、运用opengl 、 visualc + +与面向对象编程等技术,实现了基于pc机的飞机模拟空战三维可视化系统,可以比较直观地显示战斗机的空战过程,同时也可记录分析仿真飞行轨迹,从而对现役战斗机的性能进行定性和定量的分析评估。
This paper particularly and thoroughly studied the development of air situation simulation system on a certain military information system . firstly introduce the system ' s frame and analyze the whole system by ooa technology , from which abstract some clusters and give the connection of these clusters , secondly give the arithmetic about plane ' s track , radar and sentry ' s scan function by thoroughly study the curve ' s fit and insert value method , show a better method for how to inspect plane , finally paint the system ' s flow chart . the system is basically credible by test 本文主要讨论了某军用信息系统的空情仿真部分，首先从系统的整体功能出发，宏观地描绘了该系统的基本框架，然后根据需求情况对该系统的各个功能运用面向对象的思想进行分析，从中抽象出多个类，设计了类与类之间的关系，并通过对各种曲线的拟合和插值算法进行深入细致的研究，给出了求飞机飞行轨迹的算法实现，以及雷达和哨所的方程表示，对于监测飞机的算法结合实际给出了一种比较好的解决方法，最后绘制了整个软件的流程图以及描述了各个模块的具体实现过程，完成了系统的需求。
The emulational software can gave objective off - axis quantity in field of view , and objective spacial position after dealing with theorical flight track and actual operation parameter of theodolite , and compose a emulational image , which is displayed on telescope by lcd to feed back observational effect for operator and on computer screen to monitor by trainer 仿真软件通过对理论飞行轨迹与经纬仪实际运动参数的运算处理，得出目标在视场中的偏轴量及目标当前所在的空间位置，并合成一幅仿真图像，通过液晶显示板显示于观瞄望远镜中，向操作手反馈观瞄效果。同时显示于计算机屏幕中，供教练员监控。
