Abstract: As a typical long-range precision-guided weapon，cruise missile is one of main targets of the ground-to-air defense missile weapon system.The System Effectiveness Analysis（SEA） is a dynamic validity assessment method.Firstly，the anti-cruise missile ability of the air-space information supporting ground-to-air missile is analyzed.Secondly，the battle process and the battle effectiveness assessment model based on the SEA are proposed.Lastly，the simulation results show that，with air-space information support，the ability of air defense system in anti-cruise missile battle can be enlarged.

Key words: cruise missile, System Effectiveness Analysis（SEA）, air-space information, battle effectiveness

摘要： 作为远程精确攻击的典型武器，是地面防空武器系统的主要作战对象之一，利用系统有效性分析方法（System Effectiveness Analysis，SEA）是一种动态的有效性评估方法。分析了空天信息直接支持地空导弹抗击巡航导弹的能力，建立了抗击巡航导弹作战流程和作战效能分析SEA模型。仿真实例验证结果表明有了空天信息支持，防空系统抗击巡航导弹作战能力可以得到有效发挥。

关键词: 巡航导弹, 系统有效性分析方法, 空天信息, 作战效能