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| 基于小波变换的GPS变形监测数据处理方法研究 | |
| 引用本文： | 肖本林,李纬,陈开利. 基于小波变换的GPS变形监测数据处理方法研究[J]. 价值工程, 2010, 29(8): 116-117 |
| 作者姓名： | 肖本林 李纬 陈开利 |
| 作者单位： | 湖北工业大学土木工程与建筑学院,武汉,430068;中铁大桥局集团武汉桥梁科学研究院有限公司,武汉,430034 |
| 摘 要： | 工程实测变形信号不可避免的受到噪声的污染,为了提取真实的变形信号,要对实测数据进行降噪处理。结合武汉某大桥GPS实测变形数据介绍了小波变换阈值降噪过程,分别采用不同的小波函数和不同阈值模型进行降噪处理。根据信噪比、中误差两种降噪质量评价指标的定量比较,得出用db6小波和heursure阈值在软阈值量化作用下降噪效果较其他小波函数和阈值模型效果好。 |
| 关 键 词： | GPS 小波变换 阈值 降噪 |
GPS Deformation Data Processing Method Based on Wavelet Transform |
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| Xiao Benlin,Li Wei,Chen Kaili. GPS Deformation Data Processing Method Based on Wavelet Transform[J]. Value Engineering, 2010, 29(8): 116-117 | |
| Authors: | Xiao Benlin Li Wei Chen Kaili |
| Affiliation: | Xiao Benlin Li Wei Chen Kaili ( 1Civil Engineering and Architecture College, Hubei University of Technology, Wuhan 430068, China ;2China Railway Bridge Bureau Group Co.,Ltd.,Wuhan Research Institute of the Bridge, Wuhan 430034, China) |
| Abstract: | The GPS deformation measurement data are inevitably affected by noises. To extract the real signals from the measurements, the noises need to be removed. Based on the GPS deformation monitoring data of a bridge in Wuhan, this paper introduces wavelet de-noise processing to GPS observation data using threshold de-noising method with different wavelet functions and threshold strategies. The results indicate that the satisfied noise reduction effectiveness is obtained with db6 wavelet function and heursure thr... |
| Keywords: | GPS wavelet transform threshold de-noise |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |