Estimation-Guided Guidance and Its Implementation via Sequential Monte Carlo Computation

Existing missile guidance strategies are traditionally based on the separation theorem, which has never been proven valid in realistic guidance scenarios. In such cases, only the general separation theorem may be applied, implying a separately designed estimator and a guidance law accounting for the conditional probability density function. A new general-separation-theorem-compliant geometry-based approach is proposed to fusion of estimation and guidance. The conventional notion of reachability sets is extended, facilitating the introduction of miss-sets. A stochastic guidance strategy is proposed that aims at maximizing the pursuer’s single-shot kill probability by driving its own miss-set to optimally cover the evader’s miss-set (in a probabilistic sense). Information-based trajectory shaping is employed, when applicable, to enhance the scenario’s observability, thereby reducing the evader’s miss-set uncertainty. Computationally efficient sequential Monte Carlo methods are employed to estimate the evade...

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