| 基桩检测反射波的非线性小波降噪重建方法 |
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| 引用本文： | 韩晓林,彭岳星,唐新鸣.基桩检测反射波的非线性小波降噪重建方法[J].土木工程学报,2001,34(6):105-107. |
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| 作者姓名： | 韩晓林 彭岳星 唐新鸣 |
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| 作者单位： | 1. 东南大学
2. 江苏徐州天原建工所 |
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| 摘 要： | 针对现行的基桩完整性检验方法存在的问题,在分析了基桩检测中信号与噪声特征的基础上,采用非线性小波分析对基桩完整性检测的反射波信号进行降噪处理,为基桩完整性诊断提供了一种有效的降噪分析方法.并在实际工程测试中取得了较好的效果.
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| 关 键 词： | 小波分析 基桩检测 动态诊断 反射波 |
| 文章编号： | 1000-131X(2001)06-0105-03 |
| 修稿时间： | 2000年1月15日 |
DENOISING AND SIGNAL-REBUILDING REFLEX WAVE OF PILE FOUNDATION USING NONLINEAR WAVELET |
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| Han Xiaolin,Peng YuexingTang Xinming.DENOISING AND SIGNAL-REBUILDING REFLEX WAVE OF PILE FOUNDATION USING NONLINEAR WAVELET[J].China Civil Engineering Journal,2001,34(6):105-107. |
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| Authors: | Han Xiaolin Peng YuexingTang Xinming |
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| Affiliation: | Han Xiaolin Peng YuexingTang Xinming (Southeast University)(Tianyun Construction Engineering Firm) |
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| Abstract: | The reflex wave method is popularly adopted in the integrity test of a pile foundation.The repetitive reflection and disperse noise make difficulty to the integrity analysis of a pile foundation.The reflex wave of a pile foundation is really a time?varying unsteady signal.The non?linear wavelet analysis,proposed by D.L.Donoho,is an effective way for denoising and signal?rebuilding.A method of denoising and signal?rebuilding the reflex wave using non?linear wavelet transform is proposed in the paper for the integrity test.The results of practical test show that the proposed method is feasible and effective. |
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| Keywords: | wavelet analysis pile foundation test dynamic diagnosis reflex wave |
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