空空导弹发射时机的确定可与雷达测距信息无关。通过研究导弹在尾追空战机动（ACM）的环境中脱靶的原因,导弹发射包络的求解方程能够不用距离数据来重新描述。这种新方法准确地使用在强电子干扰时空战机动动态条件下。该算法需要小型数字机。模拟结果表明该新算法与现有的用雷达数据的方法之间的密切关系。 The timing of air-to-air missile launch can be determined independently of the radar ranging information. By studying the miss-miss of the missile in the wake-up maneuver (ACM) environment, the equation for solving the missile launch envelope can be re-described without range data. This new method is used accurately in the dynamics of strong electronic jamming space-time maneuvers. The algorithm requires a small digital machine. The simulation results show the close relationship between this new algorithm and the existing method using radar data.