摘要
针对导弹拦截问题,在非线性系统滑模变结构控制理论的基础上,提计出一种新型滑模变结构导引律;该导引律将目标机动视为干扰,而且仅利用了目标加速度界限的信息,在拦截过程中不需要精确的测量目标加速度,因此该导引律对目标机动具有较强的鲁棒性;在执行上,只用到了视线角速率,因而实现简单;仿真结果表明,所提出的导引律在脱靶量、拦截时间等方面优于比例导引律。
The missile guidance law utilizing nonlinear variable structure control is proposed. The acceleration command input is determined considering the target acceleration as an uncertainty. The proposed guidance law uses only the information for the target acceleration bounds; therefore, the precise measuring of target acceleration during the maneuver is not required, and the robustness to the target maneuver is achieved. The new guidance law, which utilizes line--of--sight （LOS） measurement only, is simple to implement. Simulations show that the proposed guidance law yields better performance compared to proportional navigation.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第8期1541-1543,共3页
Computer Measurement &Control
基金
国家自然科学基金(60773065)
关键词
变结构控制
导引律
非线性系统
比例导引
sliding model control
guidancelaw
nonlinear system
proportional navigation guidance
