| 一种改进小波阀值算法的变形监测数据滤波方法 |
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| 引用本文： | 任超,沙磊,卢献健.一种改进小波阀值算法的变形监测数据滤波方法[J].武汉大学学报(信息科学版),2012,37(7):873-875. |
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| 作者姓名： | 任超 沙磊 卢献健 |
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| 作者单位： | 1. 桂林理工大学测绘地理信息学院,桂林市建于路12号,541004
2. 桂林理工大学广西空间信息与测绘重点实验室,桂林市建干路12号,541004 |
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| 基金项目： | 国家自然科学基金资助项目，广西研究生科研创新资助项目，广西科学基金资助项目 |
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| 摘 要： | 针对变形监测数据的去噪问题,在分析现有阀值确定方法的基础上,提出了一种新的小波阈值算法。实际算例表明,新算法能够有效地克服软阈值法存在的恒定偏差,进一步地提高了消噪的精度和可靠性。
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| 关 键 词： | 变形监测 小波去噪 自适应阈值 |
An Adaptive Wavelet Thresholding De-noising for Deformation Analysis |
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| REN Chao,SHA Lei,LU Xianjian.An Adaptive Wavelet Thresholding De-noising for Deformation Analysis[J].Geomatics and Information Science of Wuhan University,2012,37(7):873-875. |
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| Authors: | REN Chao SHA Lei LU Xianjian |
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| Institution: | 1(1 Institute of Surveying,Mapping and Geoinformation,Guilin University of Technology, 12 Jiangan Road,Guilin 541004,China)(2 Guangxi Key Laboratory for Spatial Information and Geomatics,Gulin Uinversity of Technology, 12 Jiangan Road,Guilin 541004,China) |
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| Abstract: | A new wavelet thresholoding model is proposed for denoising the deformation data,on the basis of the regular models.In order to verify the correctness and feasibilities of the method,theory analysis and experiments were performed.Results show that the proposed method can achieve higher SNR and smaller RMS. |
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| Keywords: | deformation monitoring wavelet denoising threshold value |
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