Title: Nonlinear Cooperative Salvo Guidance with Seeker-Limited Interceptors Show Chinese title

Title: 非线性协同齐射制导与导引头有限的拦截器

Abstract: This paper presents a cooperative guidance strategy for the simultaneous interception of a constant-velocity, non-maneuvering target, addressing the realistic scenario where only a subset of interceptors are equipped with onboard seekers. To overcome the resulting heterogeneity in target observability, a fixed-time distributed observer is employed, enabling seeker-less interceptors to estimate the target state using information from seeker-equipped agents and local neighbors over a directed communication topology. Departing from conventional strategies that approximate time-to-go via linearization or small-angle assumptions, the proposed approach leverages deviated pursuit guidance where the time-to-go expression is exact for such a target. Moreover, a higher-order sliding mode consensus protocol is utilized to establish time-to-go consensus within a finite time. The effectiveness of the proposed guidance and estimation architecture is demonstrated through simulations. Show Chinese abstract

Abstract: 本文提出了一种协同制导策略，用于同时拦截具有恒定速度且不可机动的目标，解决了仅部分拦截器配备机载导引头的现实场景。 为了克服目标可观测性方面的异质性，采用了一个固定时间分布式观测器，使无导引头的拦截器能够通过有导引头的代理和局部邻居的信息，在有向通信拓扑下估计目标状态。 与传统策略通过线性化或小角度假设来近似时间至拦截的方法不同，所提出的方法利用了偏离追踪制导，其中时间至拦截表达式对于此类目标是精确的。 此外，采用了一种高阶滑模共识协议，在有限时间内建立时间至拦截共识。 通过仿真验证了所提出的制导和估计架构的有效性。