| 摘要: |
| 针对主动雷达寻的制导问题，进行了非线性系统状态估计和最优制导律的研究，并进行了目标机动情况下的仿真验证。利用主动雷达给出的带有噪声的观测信息，设计了寻的制导系统扩展卡尔曼滤波器，估计弹目相对运动状态信息。基于最优控制理论，按照需用过载和脱靶量最小设计了线性二次型最优制导律。仿真结果表明，所设计的主动雷达寻的制导系统滤波器和最优制导律能有效对付机动目标，满足飞行器控制要求。 |
| 关键词: 主动雷达； 寻的制导； 状态估计 最优控制 扩展卡尔曼滤波 |
| DOI： |
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| 基金项目: |
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| Research on State Estimation and Optimal Control of Active Radar Homing Guidance Based on EKF |
| WANG Zhi,ZHANG Jie,XIONG Wei,WANG Peng,LI Qiang |
| (Beijing Institute of Astronautical Systems Engineering) |
| Abstract: |
| The study of nonlinear system state estimation and optimal guidance law of active radar homing guidance system was described. By using active radar observations with noise information， an extended Kalman filter(EKF) was designed to estimated relative movement variables between the flight vehicle and target. Based on optimal control theory， a linear quadratic optimal guidance law was designed. The simulation results show that the proposed active radar homing guidance system filter could effectively attack the maneuvering target， and meet the flight control requirements. |
| Key words: Active radar Homing guidance State estimation Optimal control EKF |