现实真比例导引拦截任意机动目标捕获区域

主动机动突防技术的发展给大气层外动能拦截带来了严重困难。假设目标机动加速度方向垂直于弹目视线、形式任意且有界，分析了用于大气层外拦截制导的现实真比例导引律（RTPN）对该任意机动目标的捕获区域。首先在考虑拦截器存在机动过载饱和限制的情况下，推导了比例导引系数的选择范围，可使RTPN的制导指令加速度在拦截过程中不超过拦截器饱和过载；其次基于不等式分析方法，在不考虑拦截器过载限制时，推导了RTPN对任意机动目标的捕获区域；然后结合拦截器机动过载限制，推导了RTPN对任意机动目标的更加实用的捕获区域；最后通过数值仿真算例，验证了所提出的理论。

Capture region of RTPN guidance law against arbitrarily maneuvering targets

The active maneuver evasion technology has presented serious obstacles for exo-atmospheric interception. Assuming that the maneuvering acceleration vector of the target is perpendicular to the Line of Sight (LOS), and that the formation of the vector is arbitrary and bounded, this paper analyzes the capture region of the Realistic True Proportional Navigation (RTPN) guidance law against the arbitrarily maneuvering target. The selection range of the navigation gain is first derived, which guarantees that the commanded acceleration of RTPN does not surpass the maneuverability limitation of the interceptor durin g the guidance process. After that, based on the inequality analysis technique, the capture region of the RTPN against the arbitrarily maneuvering target is obtained without considering the overload saturation of the interceptor. A more practical capture region of the RTPN against the arbitrarily maneuvering target is then achieved considering the maneuverability limitation of the interceptor. Finally, the theoretical findings are demonstrated by numerical simulation examples.