Sparse signal representation and its applications in ultrasonic NDE
Many sparse signal representation (SSR) algorithms have been developed in the past
decade. The advantages of SSR such as compact representations and super resolution lead …
decade. The advantages of SSR such as compact representations and super resolution lead …
Data-driven semi-supervised and supervised learning algorithms for health monitoring of pipes
The use of guided ultrasonic waves (GUWs) for SHM of pipelines has been a popular
method for over three decades. The superiority of GUWs over traditional vibration-based …
method for over three decades. The superiority of GUWs over traditional vibration-based …
A novel physics-based temperature compensation model for structural health monitoring using ultrasonic guided waves
This article investigates the role of ambient temperature in causing changes to the structural
wave propagation, as sensed by piezoelectric transducers, in a newer perspective. A novel …
wave propagation, as sensed by piezoelectric transducers, in a newer perspective. A novel …
Feature extraction and sensor fusion for ultrasonic structural health monitoring under changing environmental conditions
Y Lu, JE Michaels - IEEE Sensors Journal, 2009 - ieeexplore.ieee.org
Strongly reverberating diffuse-like ultrasonic waves can interrogate large areas of complex
structures that do not support more easily interpreted guided waves. However, sensitivity to …
structures that do not support more easily interpreted guided waves. However, sensitivity to …
A weighted sparse reconstruction-based ultrasonic guided wave anomaly imaging method for composite laminates
Ultrasonic guided wave is a promising tool for structural health monitoring and
nondestructive testing. Numerous signal processing methods have been proposed to detect …
nondestructive testing. Numerous signal processing methods have been proposed to detect …
Lamb wave inspection for composite laminates using a combined method of sparse reconstruction and delay-and-sum
A narrowband tone burst excitation is usually required in most Lamb wave inspection
techniques in order to reduce the dispersion effect and maintain mode purity, especially in …
techniques in order to reduce the dispersion effect and maintain mode purity, especially in …
Load monitoring and compensation strategies for guided-waves based structural health monitoring using piezoelectric transducers
Accurate interpretation of in-situ piezoelectric sensor signals is a challenging task. This
paper presents the development of a numerical compensation model based on physical …
paper presents the development of a numerical compensation model based on physical …
An improved orthogonal matching pursuit method for denoising high-frequency ultrasonic detection signals of flip chips
L Su, S Tan, Y Qi, J Gu, Y Ji, G Wang, X Ming… - … Systems and Signal …, 2023 - Elsevier
Noise suppression of an echo signal plays an important role in high-frequency ultrasonic
testing of flip chips. This paper proposes an orthogonal matching pursuit (OMP) method …
testing of flip chips. This paper proposes an orthogonal matching pursuit (OMP) method …
Waveform inversion for wavenumber extraction and waveguide characterization using ultrasonic Lamb waves
Wavenumber dispersion of ultrasonic Lamb waves associating with the thickness and
material property of plates plays an important role in waveguide characterization and non …
material property of plates plays an important role in waveguide characterization and non …
Characterization of pipeline defect in guided-waves based inspection through matching pursuit with the optimized dictionary
WT Peter, X Wang - Ndt & E International, 2013 - Elsevier
An optimized dictionary of matching pursuit (MP) is designed and combined with the
ultrasonic guided wave for characterizing pipeline defect, which consequently achieves …
ultrasonic guided wave for characterizing pipeline defect, which consequently achieves …