为了满足高仿真度和交互性的跟踪雷达模拟要求,建立了一种基于Visual C++的航迹跟踪雷达模拟软件.对该软件系统所采用的基础理论模型、软件结构设计和实现难点进行了分析解决.根据雷达目标散射统计结果,产生包含噪声的目标回波模型和杂波散射统计模型,构建了飞机的运动模型、建立批次和航迹滤波算法.对模拟系统进行了功能设计和工作流程介绍,着重介绍了软件实现中解决的技术难点,包括目标与山体遮挡的判断和目标回波合成技术.介绍了模拟系统的主界面和功能窗口.在通用计算机上软件运行结果表明,软件计算响应时间小于01 s,A显和P显图像更新流畅、无闪烁,可移植性好.山体杂波和飞机目标的回波逼真度高,软件运行流畅、实时性好,达到航迹跟踪雷达的目标检测、杂波滤除和航迹跟踪要求.

In order to meet the need of a high-fidelity and interactivity of tracking radar simulation requirements,this paper sets up a kind of path tracking radar simulation software based on Visual C++.The basic theory,structure design and implementation of the software system are analyzed.According to the statistics results of the radar targets scattering,the paper presents the scattering statistical model containing the target echo model of noise and clutter,builds the aircraft's motion model,and sets up the batch and track filtering algorithm.Then,the simulation system for the functional design and working process is introduced,and emphatically the software implementation to solve the technical difficulties is introduced,including the goal and the mountain shade of judgment and the synthetic technology of the target echo.Finally,this paper presents the main interface and the function window of the simulation system.In general computer the software running results show that the calculating response time is less than 0.1 s,A scope and PPI image update smooth,flicker-free,good portability.The simulation of mountains clutter and targets is vivid,software running is fluent,and has good real-time operation,which indicates that the software system can meet the target detection,noise filtering and path tracking requirements of the path tracking radar.