| 基于小波变换的单历元算法及其在结构振动监测中的应用研究 |
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| 引用本文： | 熊永良,丁晓利,黄丁发,戴吾蛟,陈惠珊.基于小波变换的单历元算法及其在结构振动监测中的应用研究[J].测绘学报,2005,34(3):202-207. |
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| 作者姓名： | 熊永良 丁晓利 黄丁发 戴吾蛟 陈惠珊 |
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| 作者单位： | 西南交通大学,测量工程系,四川,成都,610031;香港理工大学,土地测量与地理资讯学系,香港,九龙;香港理工大学,土地测量与地理资讯学系,香港,九龙 |
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| 基金项目： | 香港理工大学校科研和教改项目
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国家自然科学基金
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教育部留学回国人员科研启动基金 |
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| 摘 要： | GPS作为一种新的结构振动监测工具正受到广泛关注.目前GPS的采样率可达100 Hz,可以满足结构振动监测对采样率的要求,但GPS观测量受多种误差源的影响,其测定结构振幅的精度有待进一步提高.将小波分析方法用于隔离观测噪声,并综合利用两种单历元算法的优点,提出一种新的结构振动监测单历元算法.若干试验验证本方法的正确性和有效性.
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| 关 键 词： | 全球定位系统 小波分析 单历元算法 结构振动监测 |
| 文章编号： | 1001-1595（2005）03-0202-06 |
| 收稿时间： | 08 24 2004 12:00AM |
| 修稿时间： | 2004-08-24 |
Integrated Single Epoch Algorithm Based on Wavelet Transform and Its Application to Structural Vibration Monitoring |
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| XIONG Yong-liang,DING Xiao-li,HUANG Ding-fa,DAI Wu-jiao,CHEN Hui-shan.Integrated Single Epoch Algorithm Based on Wavelet Transform and Its Application to Structural Vibration Monitoring[J].Acta Geodaetica et Cartographica Sinica,2005,34(3):202-207. |
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| Authors: | XIONG Yong-liang DING Xiao-li HUANG Ding-fa DAI Wu-jiao CHEN Hui-shan |
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| Abstract: | GPS is becoming an important tool for structural monitoring. As the advent of the receiver with sampling rate as high as 100 Hz, there is no problem in structural frequency monitoring by GPS. But because GPS observation is contaminated by many errors sources, its accuracy needs to be improved to meet small structural amplitude monitoring. In this paper a new single epoch algorithm is presented by integrating wavelet analysis with combined single epoch algorithm to isolate various errors. Several experiments showed that the proposed algorithm is effective and efficient. |
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| Keywords: | GPS wavelet analysis single-epoch algorithm structural vibration monitoring |
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