一种大安装角条件下的传递对准算法研究  

New method for processing big installation angle problem in transfer alignment

作　　者：孙茜[1] 刘建业[1] 曾庆化[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《东南大学学报（自然科学版）》2010年第S1期282-286,共5页Journal of Southeast University：Natural Science Edition

基　　金：国家重点基础研究计划(973计划)资助项目(2009CB724002)

摘　　要：针对大安装角下的传递对准问题,在"比力积分匹配"传递对准算法基础上,提出了一种新的基于坐标轴转换预处理的传递对准算法.该算法在接收到子惯导数据后,针对初始安装角进行坐标旋转,将子惯导坐标系旋转到虚拟的过渡坐标系.基于旋转过的线性模型利用卡尔曼滤波进行传递对准,再将对准结果转回到子惯导坐标系,获得子惯导当前时刻的真实姿态信息.仿真结果表明,该方法有效实现了含有较大初始安装角条件下的传递对准,具有重要的工程参考意义.A novel pretreatment of slave-INS( slave-inertial navigation system) coordinates rotation for processing the installation angle in transfer alignment is presented based on the'specific force integrated'matching algorithm to solve the installation angle problem. When slave-INS data are received,according to the installation angle,the coordinates are rotated to the virtual transition coordinates. The data of the rotated linear model are processed by a Kalman filter,and then the result is transformed back to the slave-INS coordinates to obtain the real attitude of the slave-INS. Simulation results show that the method realizes the transfer alignment with big installation angle,and it has great reference values for projects.

关 键 词：安装角 传递对准 比力积分匹配 坐标转换 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]