随着反导武器装备的发展,反导区域已经从TBM再入段延伸到整个被动段,选择恰当的拦截发射时机直接影响着被动段反导的作战效果。对拦截时间窗口进行了数学描述;分别建立了TBM被动段的弹道模型和拦截弹的弹道模型;根据攻防双方的特性,给出了计算拦截时间窗口的判断条件及算法;通过算例,计算得出了某型拦截弹拦截不同射程的TBM时所对应的拦截时间窗口,分析结果表明,当拦截弹战技指标一定时,TBM的射程与拦截时间窗口有很大关系。

With development of anti missile weapons, the interception area has extended from re-entry phase to the whole unpowered phase. Whether the intercept missile is properly launched in time will directly affect effectiveness of unpowered phase interception. Firstly, the intercepting time window was depicted in math model. Then, the ballistic models of the TBM's unpowered phase and the intercept missile were established respectively. According to the specialty of both sides in the interception, the judgment term and algorithm for the intercepting time window were given. Finally, through an example of the interception of different range TBM for one certain type interception missile, the corresponding intercepting time window was calculated. The result shows that the range of TBM is closely related to the intercepting time window when the capability indexes of intercept missile are fixed.