摘要
A new guidance law, called biased retro proportional navigation(BRPN), is proposed. The guidance law is designed to intercept high-speed targets with angular constraint, which can be used for ballistic target interception. BRPN guidance law is defined, and the exact time-varying bias for a required impact angle is derived. Furthermore, the simulation results(trajectory, variation of navigation ratio, capture region, etc) are compared with those of biased proportional navigation(BPN), proportional navigation and retro-proportional navigation. The results show that,at the cost of a higher intercept time, BRPN demands lower terminal lateral acceleration and has larger capture region compared to BPN.
A new guidance law, called biased retro proportional navigation （BRPN）, is proposed. The guidance law is designed to intercept high-speed targets with angular constraint, which can be used for ballistic target interception. BRPN guidance law is defined, and the exact time-varying bias for a required impact angle is derived. Furthermore, the simulation results （trajectory, variation of navigation ratio, capture region, etc） are compared with those of biased proportional navigation （BPN）, proportional navigation and retro-proportional navigation. The results show that, at the cost of a higher intercept time, BRPN demands lower terminal lateral acceleration and has larger capture region compared to BPN.
关键词
比例导引法
角度约束
拦截
横向加速度
制导律
仿真结果
时间成本
冲击角
Biased retro-proportional navigation
Biased proportional navigation
Angular constraint
High-speed target
Proportional navigation
Capture region
