Land Integrated Navigation of Laser Doppler Velocimeter Based on Janus Configuration

被引：0

作者：

Wang Qi ^{[1
]}

Gao Chun-feng ^{[1
]}

Wei Guo ^{[1
]}

Zhou Jian ^{[1
]}

Nie Xiao-ming ^{[1
]}

Long Xing-wu ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China

来源：

ACTA PHOTONICA SINICA | 2018年 / 47卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Applied optics; Laser Doppler velocimeters; Janus configuration; Velocity measurement; Split-reuse; Inertial navigation systems; Integrated navigation systems; Positioning accuracy;

D O I：

10.3788/gzxb20184708.0828001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To suppress the influence of the vehicle jolts and the inclination variations on conventional laser Doppler velocimeters, a split-reuse laser Doppler velocimeter based on Janus configuration is designed. The velocimeter is composed of two velocimeter subsystems which are mirror-mounted and insensitive to the inclination variations by compensating the influence of the inclination variations on the velocity measurement. The vehicle experiment results show that the relative error of the velocimeter is 0.3% and the maximum position error of its integrated navigation is 5.8 m in a 55.6 km journey. The proposed laser Doppler velocimeter can effectively suppress the influence of the vehicle jolts and the inclination variations on velocity measurement and improve the positioning accuracy of integrated navigation systems, so it is more suitable for land integrated navigation.

引用

页数：8

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