摘要
本文的主要目的是为了解决主动寻的空空导弹被动测距的问题。由于很多导弹采用的是稳定平台的导引头,使得现有的只测角被动测距的方法不能直接进行应用。本文通过对稳定平台导引头结构和导弹常用坐标系之间关系的分析,得到了合适的测量方程和状态方程,由于状态方程是一个比较复杂的非线性方程,本文采用了UKF的方法,并给出了得到下一个时刻采样点的算法。对本文提出的算法利用六自由度导弹模型进行了仿真,并针对常见格斗场景对UKF与EKF的性能进行了比较和分析。最后通过对脱靶量的比较表明了本文提出的算法有效的提高了导弹的导引精度。
This paper deals with the passive ranging for home guided air to air missile. Since gimbaled seeker was taken by a lot of missiles, present passive ranging method can not be directly applicable. Appropriate equations of measurements and state were get by the analysis of the architecture of gimbaled seeker and the general coordinates of missile. The UKF was taken for estimation, due to the nonlinear of state equation, and the algorithm of getting sample points of next time was presented. The method in this article was evaluated by simulation of 6Dof missile model. In the end, the simulation indicates that the method in this article is good for guidance improvement through the comparison of miss distance.
出处
《信号处理》
CSCD
北大核心
2008年第5期757-761,共5页
Journal of Signal Processing
