基于扩展卡尔曼滤波算法的双模制导仿真研究  

Dual-Mode Guidance Simulation Research Based on the Extended Kalman Filtering Algorithm

作　　者：刘广哲 张科[1,2] 吕梅柏 王靖宇[1,2] 王佩 Liu Guangzhe;Zhang Ke;LüMeibo;Wang Jingyu;Wang Pei(School of Astronautics,Northwestern Polytechnical University,Xi’an 710072,China;National Key Laboratory of Aerospace Flight Dynamics,Xi’an 710072,China)

机构地区：[1]西北工业大学航天学院,西安710072 [2]航天飞行动力学技术重点实验室,西安710072

出　　处：《航空兵器》2018年第1期27-32,共6页Aero Weaponry

基　　金：国家自然科学基金项目(61174204;61101191;61502391);航天支撑基金项目(N2015KC0121);陕西省自然科学基础研究计划(2017JM6043);航天飞行动力学技术重点实验室开放基金项目

摘　　要：传统仿真方法利用目标运动参数的真实值来实现制导律时不能反映导弹真实工作过程。将扩展卡尔曼滤波算法应用于制导回路中,分别采用雷达单模及雷达/红外双模测量信息对目标运动参数进行估计,进而利用广义比例导引律形成制导指令,使导弹飞向目标。仿真结果表明,利用目标参数估计值形成制导指令能够引导导弹准确命中目标,然而导弹的法向加速度在弹道初始段及末段存在较大的抖动,反映了寻的导弹在末制导阶段的真实工作状态,对于制导律的优化等方面具有一定的工程参考价值。The traditional simulation method can not reflect the real working process of missiles when the guidance law is realized by using the real value of the target motion parameters.The extended Kalman filtering algorithm is applied to the guidance circuit.Radar single mode and radar/infrared dual-mode measurement information are used to estimate the target motion parameters,and then the guidance law is formed by using the generalized proportional guidance law to guide the missile fly to the target.The simulation results show that the guidance command can guide the missile to hit the target accurately by using estimated target parameters,but the normal acceleration of the missile has a large jitter in the initial and terminal trajectory,reflecting the real work status of the missile in the terminal guidance phase,which has a certain reference value for the optimization of the guidance law.

关 键 词：扩展卡尔曼滤波 寻的制导 双模导引头 分布式融合算法 

分 类 号：V448[航空宇航科学与技术—飞行器设计]