Guided-wave quick sparse decomposition approach based on novel peak-frequency modulation dictionary for efficient composite plate damage inspection

• Published in: Applied acoustics Vol. 223; p. 110081
• Main Authors: Hong, Xiaobin, Luo, Zewen, Zhang, Bin, Jin, Gang
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 05.07.2024
• Subjects: Composite; Matching pursuit; Modulation dictionary; Structural health monitoring; Ultrasonic guided wave; Modulation dictionary; Structural health monitoring; Composite; Ultrasonic guided wave; Matching pursuit

•A novel peak-frequency modulation over-complete dictionary considering peak number, signal frequency and attenuation is constructed.•Peak-based quick matching pursuit algorithm (PQMP) is designed to realize the efficient separation, extraction and recognition of the guided wave mode.•Multi-sensor e...