Reconstruction of compressed signals for bridge structures based on autoregressive iterations
Journal of Mechanical StrengthVol. 48, Issue 5, Pages: 150-158(2026)
作者机构:
1.江西交通职业技术学院 信息工程学院,南昌 330013
2.江西省教育厅交通事件智能监测重点实验室,南昌 330013
3.江西通慧科技集团股份有限公司,南昌 330032
4.江西理工大学 软件工程学院,南昌 330013
作者简介:
LI Cui, E-mail: jxjtxylc@163.com
基金信息:
Science and Technology Project of Jiangxi Provincial Department of Transportation(2023H0039);Jiangxi Provincial Natural Science Foundation Project(20232BAB214074)
LI Cui,HUANG Kan,LIAO Yanfu,et al. Reconstruction of compressed signals for bridge structures based on autoregressive iterations[J]. Journal of Mechanical Strength,2026,48(5):150-158.
LI Cui,HUANG Kan,LIAO Yanfu,et al. Reconstruction of compressed signals for bridge structures based on autoregressive iterations[J]. Journal of Mechanical Strength,2026,48(5):150-158.DOI: 10.16579/j.issn.1001.9669.2026.05.017.
Reconstruction of compressed signals for bridge structures based on autoregressive iterations
The vibration signals of bridge structures under ambient excitation usually present low signal-to-noise ratio and poor sparsity
which makes it difficult to realize high-precision compressed sensing. To solve this problem
a compressed signal reconstruction method based on autoregressive iteration was proposed.
Methods
2
The unknown reconstruction error was characterized by the autoregressive error
the autoregressive coefficients were taken as the optimization variables
and the minimization of autoregressive error was set as the optimization objective. An autoregressive iterative calculation model for signal reconstruction was established
and the measured signals of an actual bridge were adopted for calculation and analysis.
Results
2
The results show that the autoregressive iteration has the characteristic of transferring high-frequency energy to the low-frequency band. The minimum reconstruction error can be obtained only when the autoregressive errors of the reconstructed signal and the original signal are close. Compared with the orthogonal matching pursuit method
the proposed method achieves significantly higher reconstruction accuracy of compressed sensing. For the original signal
the minimum reconstruction error appears at the second iteration step under different model orders; for the filtered signal
the minimum reconstruction error can be acquired after iterative convergence with a reasonable combination of compression-sampling ratio and cutoff frequency. The proposed method can be well applied to the compressed sensing reconstruction of vibration signals with low sparsity.
WANG Xianyu , LI Wenqi , ZHU Qiankun , et al . Sensor anomaly detection in bridge health monitoring system based on gray correlation analysis [J]. Journal of Hunan University (Natural Sciences) , 2024 , 51 ( 7 ): 111 - 118 . (In Chinese)
WANG Tengyi , LI Dan , ZHANG Jian . Research of lightweight structural health monitoring strategies and technologies for bridges [J]. China Civil Engineering Journal , 2025 , 58 ( 6 ): 51 - 68 . (In Chinese)
LIU Sujuan , CUI Chengkai , ZHENG Lili , et al . A review of atom recognition strategies for greedy class reconstruction algorithms based on compressed sensing [J]. Journal of Electronics & Information Technology , 2023 , 45 ( 1 ): 361 - 370 . (In Chinese)
MALLAT S G , ZHANG Z F . Matching pursuits with time-frequency dictionaries [J]. IEEE Transactions on Signal Processing , 1993 , 41 ( 12 ): 3397 - 3415 .
TROPP J A , GILBERT A C . Signal recovery from random measurements via orthogonal matching pursuit [J]. IEEE Transactions on Information Theory , 2007 , 53 ( 12 ): 4655 - 4666 .
CHEN S S , DONOHO D L , SAUNDERS M A . Atomic decomposition by basis pursuit [J]. SIAM Review , 2001 , 43 ( 1 ): 129 - 159 .
SHI Jiarong , WANG Dan , SHANG Fanhua , et al . Research advances on stochastic gradient descent algorithms [ J]. Acta Automatica Sinica , 2021 , 47 ( 9 ): 2103 - 2119 . (In Chinese)
JIA X X , KANZOW C , MEHLITZ P , et al . An augmented Lagrangian method for optimization problems with structured geometric constraints [J]. Mathematical Programming , 2023 , 199 ( 1 ): 1365 - 1415 .
WANG Q , ZHANG P L , MENG C , et al . Multi-task Bayesian compressive sensing for vibration signals in diesel engine health monitoring [J]. Measurement , 2019 , 136 : 625 - 635 .
AN Y H , XUE Z L , OU J P . Deep learning-based sparsity-free compressive sensing method for high accuracy structural vibration response reconstruction [J]. Mechanical Systems and Signal Processing , 2024 , 211 : 111168 .
KANG J , REN W X , XIE Y L , et al . An enhanced method to reduce reconstruction error of compressed sensing for structure vibration signals [J]. Mechanical Systems and Signal Processing , 2023 , 183 : 109585 .
DONG G S , WAN H P , LUO Y Z , et al . A fast sparsity-free compressive sensing approach for vibration data reconstruction using deep convolutional GAN [J]. Mechanical Systems and Signal Processing , 2023 , 188 : 109937 .
DONG Guansen . Research on compressive sensing method for dynamic structural monitoring data [D]. Hangzhou : Zhejiang University , 2023 : 17 . (In Chinese)