针对小型无人机黑飞、恐怖组织突袭等国家安全事件，构建灵活有效的全向多功能侦察雷达系统，保障国家低空安。

     In response to unlicensed flights of small unmanned aerial vehicle (SUAV) and national security events such as terrorist attacks, construct flexible and effective omnidirectional multi-function reconnaissance radar system to protect the national security at low altitude.