Calibration of a three-dimensional laser Doppler velocimeter in a land integrated navigation system

被引：20
作者：
Wang, Qi [1 ]
Nie, Xiaoming [1 ]
Gao, Chunfeng [1 ]
Zhou, Jian [1 ]
Wei, Guo [1 ]
Long, Xingwu [1 ]
机构：
[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China
来源：
APPLIED OPTICS | 2018年 / 57卷 / 29期
基金：
中国国家自然科学基金;
关键词：
FLOW;
D O I：
10.1364/AO.57.008566
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In the land navigation field, a laser Doppler velocimeter (LDV), which is able to measure the speed of a carrier, can be combined with a strapdown inertial navigation system (SINS) to form an integrated navigation system. To realize the integrated navigation positioning of a free motion carrier on the ground accurately, this paper introduces a split-reuse three-dimensional (3D) LDV. For the error parameters during application, a Kalman filtering calibration method with the assistance of a differential global positioning system (DGPS) is put forward in this paper. Two groups of integrated navigation experiments are designed to validate the effectiveness of this method and the universality of the obtained parameters. The experimental results show that the calibration method proposed in this paper is effective and the 3D LDV after compensation can greatly improve the positioning accuracy of the integrated navigation. The maximum horizontal position errors of the two experiments calculated by the dead reckoning of the 3D LDV and the gyroscopes are 4.2 m and 2.9 m, and the maximum altitude errors are 0.8 m and 0.9 m, respectively. (C) 2018 Optical Society of America
引用
收藏
页码：8566 / 8572
页数：7
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