| 光纤陀螺随机漂移辨识方法研究 |
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| 引用本文： | 张秋昭,张书毕,侯东阳. 光纤陀螺随机漂移辨识方法研究[J]. 传感器与微系统, 2011, 30(9): 50-52,56 |
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| 作者姓名： | 张秋昭 张书毕 侯东阳 |
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| 作者单位： | 1. 中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州221116;中国矿业大学环境与测绘学院,江苏徐州221116
2. 中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州,221116 |
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| 基金项目： | 国家自然科学基金青年教师项目(40904004); 江苏省普通高校研究生科研创新计划资助项目(CX10B_142Z) |
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| 摘 要： | 陀螺随机漂移是影响惯性导航和组合导航精度的重要因素.为了有效辨识出光纤陀螺随机漂移噪声的参数,采用了自相关函数、功率谱密度和Allan方差对实测陀螺数据进行分析.实验结果表明:自相关函数、功率谱密度和Allan方差都能有效辨识出陀螺输出信号中的角度随机游走噪声,只有Allan方差能辨识出其中的角速率随机游走噪声.功率谱...
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| 关 键 词： | 光纤陀螺 随机漂移 Allan方差 功率谱密度 |
Research on FOG random drifts identifying methods |
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| ZHANG Qiu-zhao,ZHANG Shu-bi,HOU Dong-yang. Research on FOG random drifts identifying methods[J]. Transducer and Microsystem Technology, 2011, 30(9): 50-52,56 |
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| Authors: | ZHANG Qiu-zhao ZHANG Shu-bi HOU Dong-yang |
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| Affiliation: | ZHANG Qiu-zhao1,2,ZHANG Shu-bi1,HOU Dong-yang1(1.Key Laboratory for Land Environment and Disaster Monitoring of SBSM,China University of Mining and Technology,Xuzhou 221116,China,2.School of Environment and Surveying and Mapping,China) |
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| Abstract: | Gyroscope random drift may influence the precision of the inertial navigation and GPS/INS integrated navigation.In order to effectively identify the parameters of random drifts of fiber optic gyro(FOG),the autocorrelation function,power spectral density(PSD) and Allan variance are introduced to analyze the raw FOG data.The result shows that the angle random walking noise can be identified by all the three methods,and the angle rate random walking can only be recognized using Allan variance.The angle random ... |
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| Keywords: | fiber-optic gyro(FOG) random drifts Allan variance power spectral density(PSD) |
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