In the events module some typical events independent of target can be added such as various types of electro - optical countermeasures 在特殊事件模块用户可加入独立与目标的各类典型事件，如各种光电干扰等。
2.
The original target and background images can be easily got through the image dbms . in the simulations of electro - optical countermeasures a strong emphasis is laid on cdircm system 所需的原始目标、背景图象来源于图象数据库，通过图象数据库管理系统提供的索引项可便捷的找到。
