Missile interceptors are usually designed to get as close to a target as possible, but a new approach prioritizes the math of the kill probability instead.
April 23, 2026
Original Paper
Kill-Probability-Maximization Guidance: Breaking from the Miss-Distance-Minimization Paradigm
arXiv · 2604.17811
The Takeaway
Interceptor missiles have long relied on a paradigm of minimizing miss-distance to ensure a hit. This new guidance law shifts the entire focus to maximizing the statistical probability of destruction. Standard engineering assumes that the closest point is always the best point for a kill. This model proves that aiming for a specific, slightly wider point can actually increase the chance of success against unpredictable targets. Changing this fundamental logic could redefine how defense systems engage aerial threats in high-stakes scenarios.
From the abstract
Classical guidance laws aim at minimizing the miss distance, thus implicitly determining the minimum warhead lethality radius required against nominal targets. However, nonnominal targets or scenarios might render the designed warhead insufficient, causing a significant degradation in the single-shot kill probability (SSKP). We propose a guidance methodology that shifts the interceptor's objective from minimizing the miss distance to directly maximizing the SSKP, while taking into account the wa