摘要
通过将协方差描述函数法和伴随技术相结合,提出统计线性化伴随法,并将其运用于导弹制导系统的精度分析,建立了综合考虑目标机动、随机风干扰以及导引头噪声作用的导弹制导精度非线性模型,分析了各随机干扰因素对制导系统精度的影响,同时与协方差描述函数法、蒙特卡罗法进行了比较。仿真结果表明,统计线性化伴随法能够更全面地反映制导系统的统计性能,且具有更高的计算效率。
Through the combination of covariance analysis describing equation technique （CADET） and adjoint technique （AT）, the statistical linearization adjoint method （SLAM） is presented and applied to the precision analysis of missile guidance system. Comprehensively considering the effect of target maneu- ver, random wind disturbance and seeker noise, the non-linear model of missile guidance precision is built up, and then the influence of various random interference factors on missile guidance system preci- sion is analyzed. Moreover, the results from SLAM, CADET and Monte-Carlo method are compared to show that the SLAM can reflect the statistical performance more completely and have higher computational efficiency than them.
出处
《飞行力学》
CSCD
北大核心
2014年第1期43-47,共5页
Flight Dynamics
关键词
统计线性化伴随法
精度分析
制导系统
随机干扰因素
statistical linearization adjoint method
precision analysis
guidance system
random interfer-ence factors
