一种低精度捷联式惯导系统初始对准方法  

An Initial Alignment Method for Low-precision Strap-down Inertial Navigation System

作　　者：贾继超[1] 李岁劳[1] 赵长山[1] 赵成志[1] 甘敏[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《火力与指挥控制》2010年第8期140-142,共3页Fire Control & Command Control

基　　金：国防科技重点预研基金资助项目(51309060401)

摘　　要：捷联式惯导系统的对准,是指在系统进入工作前建立姿态矩阵的初始值。针对低精度捷联式惯导的初始对准,提出了基于捷联式惯导系统和双天线GPS测向系统组合的初始对准方案,并着重推导了失准角和陀螺常值漂移的计算过程,最后利用最小二乘法进行了实验验证,结果表明方法可行。The initial alignment of Strap-down Inertial Navigation System（SINS）is to obtain initial value of attitude matrix as the system begins to work.Aim at initial alignment of Low-Precision SINS,an initial alignment scheme is proposed based on SINS and double antenna GPS direction finding system.And calculation process of attitude error angle and gyro constant drift is specially derived.At last experiment verification is carried on based on least square method.The result of experiment shows that this method is feasible.

关 键 词：低精度 捷联式惯导系统 初始对准 双天线GPS测向系统 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计]