Article(id=1228805282034283438, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805274362904818, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2025.05.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1713283200000, receivedDateStr=2024-04-17, revisedDate=1719244800000, revisedDateStr=2024-06-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1770899609335, onlineDateStr=2026-02-12, pubDate=1746806400000, pubDateStr=2025-05-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770899609335, onlineIssueDateStr=2026-02-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770899609335, creator=13701087609, updateTime=1770899609335, updator=13701087609, issue=Issue{id=1228805274362904818, tenantId=1146029695717560320, journalId=1225147924628267009, year='2025', volume='38', issue='5', pageStart='889', pageEnd='1132', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770899607506, creator=13701087609, updateTime=1770901500406, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228813213828051801, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805274362904818, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228813213828051802, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228805274362904818, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1036, endPage=1045, ext={EN=ArticleExt(id=1228805282399187907, articleId=1228805282034283438, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Comparative analysis of adaptive decomposition and reconstruction methods for bridge monitoring signals, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Adaptive decomposition, reconstruction, and denoising of bridge structure monitoring signals are critical parts in the research field of bridge health monitoring. To provide efficient and effective time-frequency domain denoising methods for these signals, an Adaptive Variational Mode Decomposition and Reconstruction (AVMDR) method was proposed for signal denoising, which can overcome the disadvantage of VMD (Variational Mode Decomposition) type methods that the number of decomposition components needs to be determined inadvance. The Empirical Mode Decomposition (EMD) method was introduced to adaptively determine the number of decomposition components, and then the Multi-scale Principal Component Analysis (MSPCA) was used to denoise each component and reconstruct the signal. The denoising performance of the proposed AVMDR method was validated and compared using both simulated signals—linear stationary and nonlinear non-stationary signals with varying noise levels—and real signals obtained from two cable-stayed model bridges. The results indicate that the AVMDR method outperforms other commonly used methods in terms of denoising performance, achieving optimal scores across all denoising performance evaluation metrics. Moreover, the AVMDR method can effectively retain more structural information while eliminating noise.
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桥梁结构监测信号的自适应分解重构与降噪是桥梁健康监测领域的重要研究内容。为提供快捷有效的信号时频域降噪方法,针对VMD(variational mode decomposition)类处理方法存在的分解成分数量需预先确定的缺点,提出了一种自适应变分模态分解重构(adaptive variational mode decomposition and reconstruction, AVMDR)方法来执行信号降噪。通过引入EMD(empirical mode decomposition)来自适应确定分解成分数量,然后利用多尺度主成分分析对各阶成分进行降噪并重构。利用带有不同噪声水平的线性平稳、非线性非平稳模拟信号以及2座斜拉桥模型实测信号对所提方法的降噪性能进行了验证和对比分析。研究结果表明:AVMDR方法的降噪性能优于其他常用方法,各个降噪性能评价指标均为最优,且AVMDR方法在剔除噪声的同时能够更多地保留结构信息。
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线性平稳信号降噪性能指标对比, figureFileSmall=B2s8VEl5VD8HrGNbrN06uw==, figureFileBig=zsXA1667mCSwAz/fsRAboQ==, tableContent=null), ArticleFig(id=1228805288128606602, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 3, caption=
Comparison of noise reduction performance indexes of low noise nonlinear non-stationary signals, figureFileSmall=m1wGW1yzF4pPbGMJR0lV9Q==, figureFileBig=xpXL3KEEBqjFaVGz+mM5Sg==, tableContent=null), ArticleFig(id=1228805288229269909, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图3, caption=
低噪声非线性非平稳信号降噪性能指标对比, figureFileSmall=m1wGW1yzF4pPbGMJR0lV9Q==, figureFileBig=xpXL3KEEBqjFaVGz+mM5Sg==, tableContent=null), ArticleFig(id=1228805288325738909, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 4, caption=
Comparison of noise reduction performance indexes of strong noise nonlinear non-stationary signals, figureFileSmall=Iu5e34Xkregi4/c6DTIqMA==, figureFileBig=Xasz2Ez+bT0T3m47GLe4Qg==, tableContent=null), ArticleFig(id=1228805288447373737, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图4, caption=
高噪声非线性非平稳信号降噪性能指标对比, figureFileSmall=Iu5e34Xkregi4/c6DTIqMA==, figureFileBig=Xasz2Ez+bT0T3m47GLe4Qg==, tableContent=null), ArticleFig(id=1228805288548037042, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 5, caption=
Curved cable-stayed model bridge and acceleration sensor arrangement (Unit: cm), figureFileSmall=fb1GiTP8tQ84R4AdocPRfA==, figureFileBig=2rlloabuKkJj+ULQ3arMwA==, tableContent=null), ArticleFig(id=1228805288669671868, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图5, caption=
曲线斜拉模型桥及加速度传感器布置(单位:cm), figureFileSmall=fb1GiTP8tQ84R4AdocPRfA==, figureFileBig=2rlloabuKkJj+ULQ3arMwA==, tableContent=null), ArticleFig(id=1228805288753557954, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 6, caption=
Vertical acceleration signal after noise reduction, figureFileSmall=IYwLT0poD4jpFk0tg2ROUw==, figureFileBig=kFtsR7kv+kXnKp7JOSYatw==, tableContent=null), ArticleFig(id=1228805288854221258, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图6, caption=
降噪后的竖向加速度信号, figureFileSmall=IYwLT0poD4jpFk0tg2ROUw==, figureFileBig=kFtsR7kv+kXnKp7JOSYatw==, tableContent=null), ArticleFig(id=1228805288938107346, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 7, caption=
Stability chart of signal before and after noise reduction, figureFileSmall=SkgwQefRzwkklkXZZ5leVg==, figureFileBig=s12A/9PHQv/rt+C948IdlQ==, tableContent=null), ArticleFig(id=1228805289030382042, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图7, caption=
降噪前、后信号的稳定图, figureFileSmall=SkgwQefRzwkklkXZZ5leVg==, figureFileBig=s12A/9PHQv/rt+C948IdlQ==, tableContent=null), ArticleFig(id=1228805289118462431, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 8, caption=
Shaking table model and acceleration sensor arrangement of cable-stayed bridge (Unit: cm), figureFileSmall=+pjl2qf9kL43SjJJUdoGPg==, figureFileBig=LDWbFj/SSZorAzVlMu2SxQ==, tableContent=null), ArticleFig(id=1228805289210737126, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图8, caption=
斜拉桥振动台模型及加速度传感器布置(单位:cm), figureFileSmall=+pjl2qf9kL43SjJJUdoGPg==, figureFileBig=LDWbFj/SSZorAzVlMu2SxQ==, tableContent=null), ArticleFig(id=1228805289303011824, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 9, caption=
Bridge tower vibration signal after noise reduction, figureFileSmall=Jxix5VJe8EseNgDZQ9fyFA==, figureFileBig=+EnXVU+UCkJQpc281pkqRQ==, tableContent=null), ArticleFig(id=1228805289441423865, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图9, caption=
降噪后的桥塔振动信号, figureFileSmall=Jxix5VJe8EseNgDZQ9fyFA==, figureFileBig=+EnXVU+UCkJQpc281pkqRQ==, tableContent=null), ArticleFig(id=1228805289537892863, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Fig. 10, caption=
Stability chart of signal before and after noise reduction, figureFileSmall=6svNRxadDIEg+abbPFTn3g==, figureFileBig=v+mY/fk94nTusGAF2nFg2A==, tableContent=null), ArticleFig(id=1228805289651139078, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=图10, caption=
降噪前、后信号的稳定图, figureFileSmall=6svNRxadDIEg+abbPFTn3g==, figureFileBig=v+mY/fk94nTusGAF2nFg2A==, tableContent=null), ArticleFig(id=1228805289743413771, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Tab. 1, caption=
Comparison of different adaptive signal decomposition methods
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 适用范围 | 不适用范围 | 待解决问题 |
|---|
| EMD类 | 瞬时频率具有足够的区分度 | 相邻瞬时频率之比小于0.75 | (1) 计算效率; (2) 分解稳定性; (3) 剔除有色噪声; (4) 有用信号成分的表征。 |
| EWT类 | 傅里叶谱具有足够的区分度 | 不同分解成分的傅里叶频谱存在重叠 | (1) 频带分割策略; (2) 剔除有色噪声; (3) 有用信号成分的表征。 |
| VMD类 | 傅里叶谱具有足够的区分度 | 不同分解成分的傅里叶频谱存在重叠 | (1) 确定信号分解成分数量等参数; (2) 剔除有色噪声; (3) 有用信号成分的表征。 |
), ArticleFig(id=1228805289823105550, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=表1, caption=
不同信号自适应分解方法的比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | 适用范围 | 不适用范围 | 待解决问题 |
|---|
| EMD类 | 瞬时频率具有足够的区分度 | 相邻瞬时频率之比小于0.75 | (1) 计算效率; (2) 分解稳定性; (3) 剔除有色噪声; (4) 有用信号成分的表征。 |
| EWT类 | 傅里叶谱具有足够的区分度 | 不同分解成分的傅里叶频谱存在重叠 | (1) 频带分割策略; (2) 剔除有色噪声; (3) 有用信号成分的表征。 |
| VMD类 | 傅里叶谱具有足够的区分度 | 不同分解成分的傅里叶频谱存在重叠 | (1) 确定信号分解成分数量等参数; (2) 剔除有色噪声; (3) 有用信号成分的表征。 |
), ArticleFig(id=1228805289936351765, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Tab. 2, caption=
Noise reduction performance evaluation index statistics of each method
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MSE/% | MAE/% | SNR | PSNR | CCC | MI |
|---|
| EMD | 15.96 | 3.03 | 12.06 | 18.56 | 0.97 | 0.97 |
| EEMD | 22.77 | 3.80 | 10.52 | 17.02 | 0.96 | 0.96 |
| AEMD | 19.64 | 3.66 | 11.16 | 17.66 | 0.96 | 0.96 |
| EWT | 13.88 | 2.81 | 12.67 | 19.17 | 0.97 | 0.98 |
| AVMDR | 2.04 | 1.14 | 20.99 | 27.49 | 1.00 | 1.00 |
), ArticleFig(id=1228805290028626460, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=表2, caption=
各方法降噪性能评估指标统计
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MSE/% | MAE/% | SNR | PSNR | CCC | MI |
|---|
| EMD | 15.96 | 3.03 | 12.06 | 18.56 | 0.97 | 0.97 |
| EEMD | 22.77 | 3.80 | 10.52 | 17.02 | 0.96 | 0.96 |
| AEMD | 19.64 | 3.66 | 11.16 | 17.66 | 0.96 | 0.96 |
| EWT | 13.88 | 2.81 | 12.67 | 19.17 | 0.97 | 0.98 |
| AVMDR | 2.04 | 1.14 | 20.99 | 27.49 | 1.00 | 1.00 |
), ArticleFig(id=1228805290120901152, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Tab. 3, caption=
Comparison of noise reduction performance index of each method of analog signal 2
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MSE/% | MAE/% | SNR | PSNR | CCC | MI |
|---|
| EMD | 27.17 | 4.27 | 6.25 | 9.18 | 0.89 | 0.89 |
| EEMD | 27.92 | 4.31 | 6.13 | 9.06 | 0.89 | 0.89 |
| AEMD | 30.94 | 4.44 | 5.68 | 8.62 | 0.87 | 0.88 |
| EWT | 28.04 | 3.84 | 6.11 | 9.04 | 0.88 | 0.90 |
| AVMDR | 6.59 | 2.05 | 12.40 | 15.34 | 0.97 | 0.96 |
), ArticleFig(id=1228805290242535974, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=表3, caption=
模拟信号2的各方法降噪性能指标对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MSE/% | MAE/% | SNR | PSNR | CCC | MI |
|---|
| EMD | 27.17 | 4.27 | 6.25 | 9.18 | 0.89 | 0.89 |
| EEMD | 27.92 | 4.31 | 6.13 | 9.06 | 0.89 | 0.89 |
| AEMD | 30.94 | 4.44 | 5.68 | 8.62 | 0.87 | 0.88 |
| EWT | 28.04 | 3.84 | 6.11 | 9.04 | 0.88 | 0.90 |
| AVMDR | 6.59 | 2.05 | 12.40 | 15.34 | 0.97 | 0.96 |
), ArticleFig(id=1228805290343199276, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Tab. 4, caption=
Comparison of noise reduction performance index of each method of analog signal 3
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MSE/% | MAE/% | SNR | PSNR | CCC | MI |
|---|
| EMD | 117.55 | 8.83 | 3.74 | 8.84 | 0.86 | 0.87 |
| EEMD | 116.94 | 8.89 | 3.76 | 8.86 | 0.87 | 0.88 |
| AEMD | 104.51 | 8.31 | 4.25 | 9.35 | 0.89 | 0.89 |
| EWT | 127.55 | 9.25 | 3.39 | 8.49 | 0.84 | 0.86 |
| AVMDR | 53.91 | 6.39 | 7.13 | 12.23 | 0.97 | 0.97 |
), ArticleFig(id=1228805290435473970, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=表4, caption=
模拟信号3的各方法降噪性能指标对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方法 | MSE/% | MAE/% | SNR | PSNR | CCC | MI |
|---|
| EMD | 117.55 | 8.83 | 3.74 | 8.84 | 0.86 | 0.87 |
| EEMD | 116.94 | 8.89 | 3.76 | 8.86 | 0.87 | 0.88 |
| AEMD | 104.51 | 8.31 | 4.25 | 9.35 | 0.89 | 0.89 |
| EWT | 127.55 | 9.25 | 3.39 | 8.49 | 0.84 | 0.86 |
| AVMDR | 53.91 | 6.39 | 7.13 | 12.23 | 0.97 | 0.97 |
), ArticleFig(id=1228805290548720182, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Tab. 5, caption=
Comparison of vertical frequency recognition results of curved cable-stayed bridge models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶次 | 模态频率/Hz |
|---|
| 理论值 | 原始数据 | EMD | EEMD | AEMD | EWT | AVMDR |
|---|
| Fr-1 | 2.14 | 2.1376 | 2.1381 | 2.1381 | 2.1389 | 2.1382 | 2.1391 |
| Fr-2 | 2.68 | — | — | — | — | — | 2.6794 |
| Fr-3 | 3.44 | 3.4538 | 3.4535 | 3.4514 | 3.4495 | 3.4509 | 3.4488 |
| Fr-4 | 3.96 | — | — | — | — | — | — |
| Fr-5 | 4.65 | — | — | — | 4.6497 | — | 4.6484 |
), ArticleFig(id=1228805290628411963, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=表5, caption=
曲线斜拉桥模型竖向频率识别结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶次 | 模态频率/Hz |
|---|
| 理论值 | 原始数据 | EMD | EEMD | AEMD | EWT | AVMDR |
|---|
| Fr-1 | 2.14 | 2.1376 | 2.1381 | 2.1381 | 2.1389 | 2.1382 | 2.1391 |
| Fr-2 | 2.68 | — | — | — | — | — | 2.6794 |
| Fr-3 | 3.44 | 3.4538 | 3.4535 | 3.4514 | 3.4495 | 3.4509 | 3.4488 |
| Fr-4 | 3.96 | — | — | — | — | — | — |
| Fr-5 | 4.65 | — | — | — | 4.6497 | — | 4.6484 |
), ArticleFig(id=1228805290733269567, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=EN, label=Tab. 6, caption=
Comparison of transverse frequency recognition results of shaking table model bridge tower
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶次 | 模态频率/Hz |
|---|
| 理论值 | 原始数据 | EMD | EEMD | AEMD | EWT | AVMDR |
|---|
| Fr-1 | 2.63 | 2.6915 | 2.6863 | 2.6693 | 2.6209 | 2.6323 | 2.6190 |
| Fr-2 | 4.09 | 4.1170 | 4.1113 | 4.1098 | 4.1093 | 4.1051 | 4.1071 |
| Fr-3 | 8.72 | 8.6602 | 8.6698 | 8.6875 | 8.7092 | 8.7023 | 8.7236 |
| Fr-4 | 10.12 | — | — | — | — | — | — |
| Fr-5 | 13.07 | — | — | — | 13.1421 | 13.1163 | 13.1361 |
), ArticleFig(id=1228805290850710084, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228805282034283438, language=CN, label=表6, caption=
振动台模型桥塔横向频率识别结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶次 | 模态频率/Hz |
|---|
| 理论值 | 原始数据 | EMD | EEMD | AEMD | EWT | AVMDR |
|---|
| Fr-1 | 2.63 | 2.6915 | 2.6863 | 2.6693 | 2.6209 | 2.6323 | 2.6190 |
| Fr-2 | 4.09 | 4.1170 | 4.1113 | 4.1098 | 4.1093 | 4.1051 | 4.1071 |
| Fr-3 | 8.72 | 8.6602 | 8.6698 | 8.6875 | 8.7092 | 8.7023 | 8.7236 |
| Fr-4 | 10.12 | — | — | — | — | — | — |
| Fr-5 | 13.07 | — | — | — | 13.1421 | 13.1163 | 13.1361 |
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