弹载捷联惯导系统快速两位置自对准  

Fast two-position self-alignment in missile SINS

作　　者：徐晓苏[1] 孙学慧[1] 扶文树[1] 

机构地区：[1]东南大学仪器科学与工程学院,南京210096

出　　处：《中国惯性技术学报》2007年第2期139-142,共4页Journal of Chinese Inertial Technology

基　　金：国防973项目(973-61334);国家自然科学基金资助项目(60374046);国家自然科学基金项目(50575042)

摘　　要：通过分析发现,影响自对准快速性的只是航向失准角估计速度。文中提出了快速两位置对准,即第一位置对准30s以后引入第二位置,从而提高了对准速度而又不影响对准的精度,并结合实际应用提出了通过改变俯仰角的快速两位置对准,具有较好的实践意义。文中综合利用了自对准中姿态矩阵求解的新方法和快速两位置对准的方法,这些将大大提高了对准的精度和快速性,最后通过仿真验证了所提方法的可行性。The analysing shows that it is heading misalignment＇s estimate speed that affects the alignment＇s quickness. The fast twoposition alignment was presented which introduced the second position after the first position has been aligned for 30 s, so the alignment＇s quickness is improved and high precision can be ensured. Combining with practical applications, a twoposition alignment by changing the pitch-angle was presented. A new method that synthesized the procuring of initial attitude matrix in self-alignment and the technique of fast two-position alignment were used to improve the alignment＇s quickness and high precision. This method was proved by simulation.

关 键 词：捷联惯导系统 初始对准 自对准 姿态矩阵 

分 类 号：U666.1[交通运输工程—船舶及航道工程]