Comparison of Initial Alignment Methods for SINS

被引：0
作者：
Zhao, Hongyu [1 ]
Shang, Hong [2 ]
Wang, Zhelong [1 ,3 ]
Jiang, Ming [1 ]
机构：
[1] Dalian Univ Technol, Sch Control Sci & Engn, Dalian, Peoples R China
[2] Natl Earthquake Response Support Serv, Beijing, Peoples R China
[3] Chinese Acad Sci, Shenyang Inst Automat, Shenyang, Peoples R China
来源：
2011 9TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION (WCICA 2011) | 2011年
基金：
中国博士后科学基金;
关键词：
SINS; Analytic coarse alignment; Initial alignment; Error analysis; Reference vector;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Six standard analytic coarse alignment methods and a direct method are compared via error analyses for strapdown inertial navigation system on stationary base. Although these methods are derived from the same measurements of the local gravity vector and the Earth rate, their error characteristics are not completely identical. The susceptibility of these methods to geographical latitude is examined, and a criterion for the election of an appropriate algorithm is established. Due to its high accuracy, computation efficiency and immunity to latitude uncertainty, the direct method is more suitable for practical applications. The results obtained from both simulation and real data test give a visual demonstration.
引用
收藏
页码：42 / 47
页数：6
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