An Adaptive Peak Detection Method for Inspection of Breakages in Long Rails by Using Barker Coded UGW

Wei, Xiaoyuan; Yang, Yuan; Ureña, J.; Yan, Jiaxuan; Wang, Haozhen

doi:10.1109/access.2020.2979409

Cited by 6 publications

(12 citation statements)

References 31 publications

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“…The peak detection algorithm proposed in this paper is compared with an adaptivebased peak detection method. The Hilbert transform was used to achieve peak detection [24]. Although an amplitude threshold is not required, a smooth envelope is needed.…”

Section: The Experimental Resultsmentioning

confidence: 99%

“…An automatic R-peaks detection method based on wavelet transform and Hilbert transform in ECG signals without using any amplitude threshold was reported in [23]. Wei X. et al [24] proposed an adaptive peak detection algorithm based on a digital bandpass tracking filter, moving average filter, and Hilbert transform. Although the above methods cannot require any amplitude thresholds, the information obtained by these methods is usually advanced or lagged when the main lobe width (MLW) of the UGW autocorrelation function envelope signal is large.…”

Section: Introductionmentioning

confidence: 99%

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Research on the peak detection method based on derivative transformation for ultrasonic guided wave signals in the rail

Xu,

Wei

et al. 2023

Preprint

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To solve the problem of difficult identification and localization of structural defects by utilizing nonlinear ultrasonic guided waves with coding characteristics in the rail, a novel adaptive peak detection method is proposed in this work, which is based on multi-cascade moving average filter and derivative transformation. First, the ultrasonic guided wave detection system in the steel rail environment is introduced and the parameters of the piezoelectric ultrasonic transducer used in this paper are given. Secondly, analyze the characteristics of the coded excitation ultrasonic guide wave signal, consider the effects of peak sidelobe level, multipath effect, and noise, and use multi-cascade moving average filtering and Hilbert transforms to reduce peak sidelobe interference and extract the envelope. Finally, the peak position of the correlation sequence is detected according to the derivative transformation. The experiment shows that the proposed algorithm can effectively extract the peak information and has good anti-noise performance. It has good recognition ability in complex track environments and the algorithm's accuracy can reach 94.34. This is suitable for coded excitation ultrasonic transmission systems and is easy to implement in the real-time detection system.

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Section: The Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the peak detection method based on derivative transformation for ultrasonic guided wave signals in the rail

Xu,

Wei

et al. 2023

Preprint

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“…Yucel et al [20] compared the use of maximal length sequences and LFM signals and proposed a novel signal processing technique by utilizing dispersion compensation and cross-correlation. Wei et al [21] proposed an adaptive peak detection method to detection breakages of the rail based on Barker coded excitation. Yuan et al [22] proposed a novel track circuit system based on a previous UGW system and applied 63-bit Kasami sequences to the transmission scheme.…”

Section: Introductionmentioning

confidence: 99%

Research on Coded Excitation Using Kasami Sequence in the Long Rail Detection Based on UGW

2022

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For a broken rail detection system based on ultrasonic guided waves (UGW), the multimodal and dispersion characteristics of UGW degrade signal-to-noise ratio (SNR) and range resolution. To improve the SNR of the received signals and range resolution, the coded excitation based on Kasami sequences is presented in this work. Utilizing a PSpice model of piezoelectric ultrasonic transducers, as well as conducting field tests based on the pitch–catch mechanism, it is shown that encoded UGW signals can increase the SNRG (the gain of SNR) by 6.29 dB. The main lobe width of the coded excitation is mainly determined by the number of carrier cycles and the carrier waveform, and the size of the side lobes is mainly determined by the number of coding bits. To quickly identify the corresponding transmissions at the receivers, a peak detection algorithm is shown. It is based on bandpass filter, triangle filter and Hilbert transform. Its accuracy and effectiveness are validated by using some field tests under different distances. It can be concluded that the shown adaptive peak algorithm has strong robustness and immunity to noise.

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“…It is well known that the guided waves can be employed to detect defects in plate-like or bending structures. The applications of guided waves were described in non-cylindrical structures [29]- [33], such as railway rails and structural 'I' beams. Liu et al [34] proposed a method to detect radial cracks in annular structures and its methodology built on guided circumferential waves and continuous wavelet transform.…”

Section: Introductionmentioning

confidence: 99%

A Rapid and Accurate Technique With Updating Strategy for Surface Defect Inspection of Pipelines

Wang

Liu

et al. 2021

IEEE Access

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Defect inspection in pipes at the early stage is of crucial importance to maintain the ongoing safety and suitability of the equipment before it presents an unacceptable risk. Due to the nature of detection methods being costly or complex, the efficiency and accuracy of results obtained hardly meet the requirements from industries. To explore a rapid and accurate technique for surface defects detection, a novel approach QDFT (Quantitative Detection of Fourier Transform) has been recently proposed by authors to efficiently reconstruct defects. However, the accuracy of this approach needs to be further improved. In this paper, a modified QDFT method with integration of an integral coefficient updating strategy, called QDFTU (quantitative detection of Fourier transform of updating), is developed to reconstruct the defect profile with a high level of accuracy throughout iterative calculations of integral coefficients from the reference model updated by a termination criteria (RMSE, root mean square error). Moreover, dispersion equations of circumferential guided waves in pipes are derived in the helical coordinate to accommodate the stress and displacement calculations in the scattered field using hybrid FEM. To demonstrate the superiority of the developed QDFTU in terms of accuracy and efficiency, four types of defect profiles, i.e., a rectangular flaw, a multi-step flaw, a double-rectangular flaw, and a triple-rectangular flaw, are examined. Results show the fast convergence of QDFTU can be identified by no more than three updates for each case and its high accuracy is observed by a smallest difference between the predicted defect profile and the real one in terms of mean absolute percentage error (MSPE) value, which is 6.69% in the rectangular-flaw detection example. INDEX TERMSCircumferential guided wave, Hybrid FEM, reconstruction, reference model, updating strategy. YIHUI DA received the B.S. degree in theoretical and applied mechanics from Henan Polytechnic University, Henan, China, in 2009, and the M.S. degree in general and fundamental mechanics and the Ph.D. degree in engineering mechanics from the Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 2014 and 2018, respectively.Since 2019, he has been working as a Postdoctoral Researcher with the Nanjing University of Aeronautics and Astronautics. His research interests include the numerical modeling of ultrasonic guided waves, ultrasonic nondestructive evaluation, and signal processing.

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An Adaptive Peak Detection Method for Inspection of Breakages in Long Rails by Using Barker Coded UGW

Cited by 6 publications

References 31 publications

Research on the peak detection method based on derivative transformation for ultrasonic guided wave signals in the rail

Research on the peak detection method based on derivative transformation for ultrasonic guided wave signals in the rail

Research on Coded Excitation Using Kasami Sequence in the Long Rail Detection Based on UGW

A Rapid and Accurate Technique With Updating Strategy for Surface Defect Inspection of Pipelines

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