视场角限制下导弹协同攻击导引律设计

为实现多枚导弹协同攻击目标，提出视场角限制下攻击时间角度控制导引律。通过在传统比例导引上增加两项偏置项，推导出一种新型攻击时间和角度控制的导引律，并用Lyapunov理论证明其稳定性。针对导弹大机动下视场角可能超过导引头视场角范围而丢失目标的问题，将用于角度控制的偏置项分为三个阶段，设计了导引头视场角限制下的导引过程。仿真结果表明：所设计的导引律可以将视场角限制在导引头视场角范围内，实现不同位置下的多枚导弹以指定角度同一时间攻击目标，达到导弹协同攻击的效果。

Missile cooperative attacking guidance law with field-of-view limit

In order to achieve cooperative attack of multiple missiles, the impact time and impact angle control guidance-law with field-of-view limit was proposed. A new impact time and impact angle control guidance-law was derived by adding two biases to proportional navigation, and the stability is analyzed by the Lyapunov theory. The guidance process with seeker field-of-view limit was designed by dividing angle control bias term into three stages for the reason that the seeker look angle may overstep the field-of-view and lose the target. Simulation results show that the seeker look angle is limited within the view field of the seeker and multiple missiles at different positions attack the target at a specific angle at the same time, achieving the cooperative attack effect under the designed guidance-law.