一种打击地面固定目标的自适应比例导引律  

Adaptive Proportional Guidance Law for Ground Stationary Target

作　　者：胡正东[1] 曹渊[1] 蔡洪[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《系统仿真学报》2009年第13期4084-4087,4096,共5页Journal of System Simulation

基　　金：国防科技大学优秀研究生创新资助计划(B070103)

摘　　要：针对某些制导导弹垂直打击地面固定目标的任务要求,研究了具有末端落角约束且无需测距信息的自适应比例导引律。通过分析导弹在导引段的纵向平面运动方程和侧向平面运动方程的特点,设计了实现垂直打击任务的制导逻辑。同时为了增强导引律的鲁棒性,提出了一种导引系数自适应更新的方案。仿真结果表明,与最优导引律相比,自适应比例导引律的制导精度受初始速度倾角、制导指令时延、制导指令更新频率等因素的影响较小,但受测量信号干扰的影响较大。According to the problem that perpendicular impact on the grotmd stationary target was required for some guided missiles, the adaptive proportional guidance law with terminal angular constraint was derived, which didn＇t need range information. On analyzing the longitudinal plane motion equation and lateral plane motion equation in guided phase, the guidance logic for perpendicular impact task was devised. And for the sake of robustness enhancement of the guidance law, an adaptive guidance parameter updating method was proposed. Simulation results show that compared with optimal guidance law, the guidance precision of adaptive proportional guidance law is less affected by initial velocity inclination angle and guidance order delay and order updating frequency, but is more affected by signal measurement with jam.

关 键 词：垂直打击 地面固定目标 末端落角约束 自适应比例导引律 制导逻辑 最优导引律 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]