基于多模型自适应估计的混合策略微分对策制导  

Mixed Strategy Differential Game Guidance Based on Multiple Model Adaptive Estimator

作　　者：花文华[1] 陈兴林[1] 宋申民[1] 

机构地区：[1]哈尔滨工业大学航天学院,哈尔滨150001

出　　处：《宇航学报》2010年第6期1582-1588,共7页Journal of Astronautics

基　　金：国家自然科学基金重大合作项目(607201060062)

摘　　要：为有效降低多模型自适应估计器算法的计算量,本文采用目标机动命令构建其离散化假设空间,同时考虑到目标机动随机时间切换所需的检测时间要求,对多模型自适应估计器并行运行的成员滤波器数目进行了简化,基于这种简化的多模型自适应估计器对提出的混合策略微分对策制导方案进行了仿真研究。混合策略微分对策制导综合考虑了两种基本的微分对策制导律的优势和不足,针对最优目标机动随机切换时间段的不同而应用相应的制导策略。仿真结果表明简化的多模型自适应估计器方法可以实现系统状态的较好估计,包括目标加速度的估计,混合策略微分对策制导也具有较好的目标拦截性能。Based on the research of the MMAE principle,a simplified MMAE is presented to reduce the computational load.With the consideration of the special structure of maneuver command discrete hypothesis space,the elemental filters of the simplified MMAE running in parallel are reduced by using the detection time of the target randomly time switch.Based on this simplified MMAE,a mixed strategy differential game guidance approach is analyzed.The mixed strategy differential game guidance approach considers the advantages and disadvantages of two traditional differential game guidance laws and adopts different guidance strategy for different target maneuver command switch time.The simulation results show that the mixed strategy differential game guidance based on simplified MMAE can provide good states estimation and interception performance compared with other single strategy guidance laws.

关 键 词：末制导律 多模型自适应估计 微分对策 检测时间 

分 类 号：V448.133[航空宇航科学与技术—飞行器设计]