真比例导引反高速目标拦截能力分析

针对反高速目标拦截作战过程中拦截弹中末制导交接班时刻状态约束设置的问题,分析了真比例导引制导律的拦截能力。首先,通过分析末制导阶段拦截弹和目标的相对运动关系,推导得到了成功拦截目标的充分必要条件以及目标速度前置角需要满足的约束范围;其次,在中末制导交接班不满足拦截条件的情况下,针对拦截高速非机动目标作战情形,通过分析拦截弹速度前置角和目标速度前置角的变化关系,给出了真比例导引静态捕获区(static capture region,SCR)的定义以及构成;然后,针对拦截高速机动目标作战情形,结合目标速度前置角约束范围得到了真比例导引动态捕获区(dynamic capture region,DCR)的定义以及构成;最后开展了3种情形下的数字仿真,验证了真比例导引拦截能力分析的合理性和有效性。

Interception capability analysis of the true proportional navigation guidance law against hypersonic targets#br#

To solve the problem of the state parameters constraints at the handover moment between the midcourse and terminal guidance in the hypersonic target interceptions, the interception capability of the true proportional navigation guidance law is analyzed. Firstly, the sufficient and necessary condition for a successful interception and the constraints for the target velocity heading angles are derived by analyzing the relative motion of the interceptor and the target in the terminal guidance phase. Secondly, in the cases where the interceptor fail to satisfy the interception condition against un maneuvering hypersonic targets, the definition and constitution of the static capture region (SCR) of the true proportional navigation guidance law are given by analyzing the evolving relationships between the interceptor velocity heading angles and target velocity heading angles. Thirdly, aiming at the maneuvering hypersonic targets interceptions, the definition and constitution of the dynamic capture region (DCR) of the true proportional navigation guidance law are derived based on the target velocity heading angles constraints. Finally, three digital simulations are carried out, which validate the rationality and effectiveness of the true proportional navigation interception capability analysis.