旋转调制式捷联惯导的计算罗经对准方法  

Study on Initial Alignment of Rotation-Modulating Strapdown INS

作　　者：郭宗本[1] 徐海刚[1] 

机构地区：[1]北京航空航天大学,北京100191

出　　处：《导航》2009年第1期11-14,共4页

摘　　要：初始对准是关乎导航系统性能的关键技术，提高导航系统的初始对准指标对于增强载体的生存和突防能力具有重要意义。采用旋转调制技术的惯性导航系统，由于器件误差受到调制，初始对准性能有望得到明显提高。针对一型自主研制的旋转调制式捷联惯导系统，设计了基于计算罗经方法的开环对准测漂模型，给出了半实物仿真实验结果及实时对准验证结果。结果表明，采用旋转调制技术后，对准精度可较无调制情况提高一个量级以上。Initial alignment, a technology which can directly affect the pertormance of INS, is a key tactor m improving the ability of penetration and survival of the carriers of INS. INS based on Rotation-modulation technology can vanish the affect of constant and trend drift of Inertial Instrument to the performance of INS. In this way, the capability of initial alignment can be improved. A gyrocompassing alignment method is designed for a SINS based on Rotation-modulation technology. The result of hardward-in-loop experiment and a realtime initial alignment experiment are given. The result shows that the precision of initial alignment is improved tenfold because of the adopting of Rotation Modulation technology.

关 键 词：捷联惯导 初始对准 旋转调制 罗经法 

分 类 号：V249.322[航空宇航科学与技术—飞行器设计]