| 振动对光纤陀螺线形测量系统影响分析 |
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| 引用本文： | 张震,杨燕,郑磊,杨丹丹,甘维兵,胡文彬. 振动对光纤陀螺线形测量系统影响分析[J]. 应用声学, 2017, 25(8): 3-3 |
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| 作者姓名： | 张震 杨燕 郑磊 杨丹丹 甘维兵 胡文彬 |
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| 作者单位： | 武汉理工大学光纤传感技术国家工程实验室,武汉理工大学光纤传感技术国家工程实验室,武汉理工大学光纤传感技术国家工程实验室,武汉理工大学光纤传感技术国家工程实验室,武汉理工大学光纤传感与信号处理教育部重点实验室,武汉理工大学光纤传感技术国家工程实验室 |
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| 基金项目： | 基于光纤陀螺的大跨桥梁结构连续线形检测技术研究(项目编号：20210093) |
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| 摘 要： | 在使用光纤陀螺测量系统对桥梁线形进行测量的过程中,来自汽车和路面的振动影响会给测量结果带来巨大的误差。使用Morlet小波对光纤陀螺采集到的信号进行时频分析,确定了27 Hz以上均为噪声信号。在对巴东长江大桥的线形测量中,使用切比雪夫滤波器去除光纤陀螺采集到的噪声信号,大大的提高了光纤陀螺线形测量系统的精度。
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| 关 键 词： | 光纤陀螺 线形测量 信号处理 振动 Morlet小波 切比雪夫滤波器 |
| 收稿时间： | 2017-02-06 |
| 修稿时间： | 2017-03-03 |
Analysis of Influence From Vibration on FOG BasedMeasurement System |
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| Zhang Zhen,Yang Yan,Zheng Lei,Yang Dandan,Gan Weibing and Hu Wenbin. Analysis of Influence From Vibration on FOG BasedMeasurement System[J]. Applied Acoustics(China), 2017, 25(8): 3-3 |
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| Authors: | Zhang Zhen Yang Yan Zheng Lei Yang Dandan Gan Weibing Hu Wenbin |
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| Affiliation: | School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China;Ministerial Key Laboratory of Fiber Optic Sensing Technology and Information Processing,Wuhan University of Technology,Wuhan 430070,China,State Engineering Laboratory for Fiber Optic Sensing Technology,Wuhan University of Technology,Wuhan 430070,China,State Engineering Laboratory for Fiber Optic Sensing Technology,Wuhan University of Technology,Wuhan 430070,China,State Engineering Laboratory for Fiber Optic Sensing Technology,Wuhan University of Technology,Wuhan 430070,China,Ministerial Key Laboratory of Fiber Optic Sensing Technology and Information Processing,Wuhan University of Technology,Wuhan 430070,China and State Engineering Laboratory for Fiber Optic Sensing Technology,Wuhan University of Technology,Wuhan 430070,China |
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| Abstract: | In process of measuring the line-shape of bridge structure by FOG based measurement system, the vibration and shock from vehicle and rode surface can result in large measurement error.The signal above 27 Hz is noise by time-frequency analysis with Morlet Wavelet Transform. At last, taking the Badong Yangtze River Bridge as an example, processing FOG signal with Chebyshev Low-pass Filter after analyzing vibration data, and the results show that the measurement precision of the FOG based measurement system have greatly improved. |
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| Keywords: | FOG bridge structure measurement signal processing vibration Morlet wavelet Chebyshev filter |
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