A cooperative salvo strategy is proposed in this paper which achieves consensus among the interceptors within a pre-defined arbitrary settling time. Considering non-linear engagement kinematics and a system lag to capture the effect of interceptor autopilot as present in realistic interception scenarios, the guidance schemes use the time-to-go estimates of the interceptors in order to achieve simultaneous interception of a stationary target at a pre-determined impact time. The guidance scheme ensures that consensus among the time-to-go estimates of the interceptors is achieved within a settling time whose upper bound can be pre-specified arbitrarily independent of the initial conditions or design parameters. The efficacy of the proposed guidance strategy is demonstrated using numerical simulations with varied conditions of initial position, velocities and heading angle errors of the interceptors as well as different desired impact times.

翻译：本文提出一种协同齐射策略，该策略能在预先定义的任意收敛时间内实现拦截弹之间的协同一致。考虑到实际拦截场景中存在的非线性交战运动学及用于描述拦截弹自动驾驶仪效应的系统滞后，所设计的制导方案利用各拦截弹的剩余飞行时间估计值，以实现对静止目标在预定命中时刻的同时拦截。该制导方案确保拦截弹剩余飞行时间估计值在收敛时间内达成一致，且收敛时间上界可独立于初始条件或设计参数而任意预先设定。通过数值仿真验证了所提制导策略的有效性，仿真涵盖了拦截弹初始位置、速度、航向角误差以及不同期望命中时间等多种条件。