研究复杂电子环境下战斗机利用地形进行隐蔽突防，对提高战斗机生存力、任务完成概率具有重要意义。给出了数字地图的拼接处理技术，为真实地形中大范围突防规划问题的解决奠定了基础；建立了雷达视线方程模型，得到了雷达探测范围，进而建立了真实地形中突防战斗机在任意位置的安全高度范围模型；结合实战情况，给出了对敌探测雷达的电子压制模型；最后进行了实例仿真，结果表明了所提数字地图处理方法的有效性及所建安全高度范围模型的正确性。

It is of great significance to study the concealing penetration of fighter aircraft by resorting to terrain under complicated electronic environment,which is very important for improving the aircrafts survivability and mission completion rate.Firstly,the matching technology of digital map was given,which was the basis for making penetration plan in large area of real terrain.Secondly,the line of sight model was established for radar and its detecting range was obtained.Then,the safeheightrange model was built up for the aircraft wherever the aircraft was.Based on real combat condition,the oppressive jamming area model was given.Simulation was made and the results proved the effectiveness of the proposed digital map processing method and the correctness of the safeheightrange model.