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现有的先进制导律研究常常分离设计最优估计器和最优制导律,但是这种分离设计没有被证明是有效和最优的设计方法。本文基于普通分离原理(GST),提出一种制导/估计综合设计方法。首先,将拦截器反导作战模型考虑为一类非线性、非高斯追逃拦截问题,建立了噪声环境中追逐-逃逸对策模型;其次,引入追逃未达集概念,利用几何方法将估计器设计方法结合到制导律的设计中,通过理论推导综合设计了估计器和制导律,给出了未达集中心调整制导律(MSC);最后,通过数值仿真验证了未达集中心调整制导律的制导性能和有效性,并与传统的扩展比例导引律(APN)进行了对比,显示了其优越的制导性能。
Existing advanced guidance law research often separates the design optimal estimator and the optimal guidance law, but this separation design has not proved to be an effective and optimal design method. Based on the principle of general separation (GST), this paper presents a new integrated guidance and estimation method. Firstly, the anti-missile combat model of interceptor is considered as a kind of non-linear and non-Gaussian pursuit-interception problem, and a chase-and-escape strategy in noise environment is established. Secondly, the concept of pursuit and escapement is introduced. The design method is integrated into the design of the guidance law, and the estimator and the guidance law are designed synthetically through theoretical derivation. Finally, the center-less guidance law (MSC) is given. Finally, the numerical simulation shows that the center-less guidance law The guidance performance and effectiveness of the proposed method are compared with those of the traditional Extended Proportional Navigation Law (APN), which shows its superior guidance performance.