中国科学院机构知识库网格系统: Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE)

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE)

文献类型：会议论文


作者	Zhang Z. ; Sun J. ; Wu K.
出版日期	2005
会议名称	Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004
会议地点	Beijing, China
关键词	North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme the sine output signal of the FOG was sampled and disposed and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes can meet the orientation need of artillery terrain measurement vehicle armored car unmanned drive vehicle geodetic survey and tunnel exploration.
页码	611-618
收录类别	EI
源URL	[http://ir.ciomp.ac.cn/handle/181722/33488]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Zhang Z.,Sun J.,Wu K.. Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE)[C]. 见:Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004. Beijing, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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