导引头测量误差对拦截器轨道修正能力的影响

Impact of Seeker Tracking Error upon Divert Ability of Kinetic Kill Vehicle

大气层外动能拦截器末段的轨道修正能力与制导方式有关,通过仿真计算研究某种制导方式下,导引头测角速率误差对轨道修正能力的影响。仿真结果表明,随着导引头测量误差逐渐增加,轨道修正能力逐渐减小。在导引头测量误差较大时,通过适当改变轨控发动机的开关门限,可以增大轨道修正能力。研究结果表明,为了得到较高的轨道修正能力,需要根据导引头的性能参数,对各种制导控制参数进行优化设计。

The divert ability of exoatmospheric kill vehicle depends on its guidance and control sys- tem. The effort of line-of-sight （LOS） rate estimation errors from the seeker on divert ability is analyzed for a special guidance and control system. Simulation results show that the divert ability decreases as the LOS rate estimation error increases gradually. The divert ability can be increased by optimizing the LOS rate threshold of divert firing. It is indicated that parameters of guidance and control system need to be optimized in concordance with the seeker performance to get high divert ability