%0 Journal Article
%T A fast and accurate initial alignment method for strapdown inertial navigation system on stationary base<br>
%A Xinlong WANG
%A Gongxun SHEN
%A <br>
%J 控制理论与应用
%D 2005
%I 
%X In this work,a fast an d accurate stationary alignment method for strapdown inertial navigation system (SINS) is proposed.It h as been demonstrated that the stationary alignment o f SINS can be improved by employing the multipositio n technique,but the alignment time of the azimuth error is relatively longer.Over here,the two-posi tion alignment principle is presented.On the basis of this SINS error model,a fast estimation algorithm of the azimuth error for the initial a lignment of SINS on stationary base is derived f ully from the horizontal velocity outputs and the output rates,and the novel azimuth error estimatio n algorithm is used for the two-position alignment. Consequently,the speed and accuracy of the SINS' s initial alignment is enhanced greatly.The computer simulation results illustrate the efficiency of this alignment method.
%K Strapdown inertial navigation syst em (SINS)
%K Initial alignment
%K Kalman filter
%K Observability<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=1C6785D94E80EB4D0DE6A93AF94EA38B&yid=2DD7160C83D0ACED&vid=38B194292C032A66&iid=0B39A22176CE99FB&sid=769BD58726D66E7D&eid=EB552E4CFC85690B&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=0