Journal Article10.1016/J.INFRARED.2017.02.015
A novel pulse compression algorithm for frequency modulated active thermography using band-pass filter
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TL;DR: In this paper, the authors proposed a novel pulse compression algorithm, in the context of frequency modulated thermal wave imaging, derived from a predefined reference pixel in a recorded video, which contains direct measurement of the excitation signal alongside the thermal image of a test piece.
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About: This article is published in Infrared Physics & Technology. The article was published on 01 May 2017. The article focuses on the topics: Pulse compression & Band-pass filter.
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Citations
An overview of corrosion defect characterization using active infrared thermography
TL;DR: In this paper, an overview on the applications of infrared thermography for the detection and characterisation of general metal loss in metallic materials is presented, which represents the advances of thermography applications specifically in metal loss/thickness variation measurement along the recent literature.
194
Review of conventional and advanced non-destructive testing techniques for detection and characterization of small-scale defects
TL;DR: In this article , the state of the art of NDT-based solutions, in terms of small-scale defects located at surface, and interior of materials, are established, and a holistic review is composed on the detectability of these methods in terms both sensitivity and resolution.
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Halogen optical referred pulse-compression thermography for defect detection of CFRP
Shichun Wu,Bin Gao,Yang Yang,Yuyu Zhu,Pietro Burrascano,Stefano Laureti,Marco Ricci,Yizhe Wang +7 more
TL;DR: In this article, the step heating contribution is recorded separately by mean of an additional measurement, which can effectively enhance the defect information and improve the thermal contrast between defect and non-defect areas when halogen lamps are used in combination with pulse-compression in reflection mode.
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Pixel-Level Classification of Pollution Severity on Insulators Using Photothermal Radiometry and Multiclass Semisupervised Support Vector Machine
TL;DR: An innovative method based on photothermal radiometry (PTR) and multiclass semisupervised support vector machine for the classification of insulator pollution severity and an estimation framework for fast, accurate, and nondestructive industrial application without the tedious work of labeling large amounts of data is proposed.
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Sparse Reconstruction-Based Thermal Imaging for Defect Detection
TL;DR: This paper proposes an idea of employing sparse reconstruction-based technique for thermal imaging defect detection, and describes cross-validation method for optimization of a user parameter in sparse reconstruction method.
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References
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Ravibabu Mulaveesala,Suneet Tuli +1 more
TL;DR: In this paper, the authors provided the theory and mathematical analysis in support of a recently proposed frequency modulated thermal wave imaging for nondestructive subsurface defect detection in solids.
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Pulse Compression-Key to More Efficient Radar Transmission
Charles E. Cook
- 01 Mar 1960
TL;DR: The technique of pulse compression offers a means of increasing the average power available to illuminate radar targets without any loss at the receiver of the resolution needed for the tactical requirements of the system.
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