Post-processing synchronization and characterization of generated signals by a repetitive Marx generator

• Published in: Optical and quantum electronics Vol. 50; no. 9; pp. 1 - 13
• Main Authors: Redjimi, A., Nikolić, Z., Knežević, D., Vasiljević, D.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2018; Springer Nature B.V
• Subjects: Audio data; Bursts; Characterization and Evaluation of Materials; Computer Communication Networks; Electrical Engineering; Euclidean geometry; Focus on Optics and Bio-photonics; High speed cameras; Lasers; Marx generators; Measurement techniques; Optical Devices; Optics; Pattern matching; Photonica 2017; Photonics; Physics; Physics and Astronomy; Piezoelectricity; Post-processing; Shock waves; Signal analysis; Signal processing; Synchronism; Thermal imaging; Time synchronization; Thermal imaging camera; High speed camera; Post-processing synchronization; Marx generator; Audio recorder; Shock wave
• ISSN: 0306-8919; 1572-817X
• DOI: 10.1007/s11082-018-1614-x

In the present paper, a new approach was developed for solving the problem of time synchronization of a set of signals obtained by different measurement techniques without a common trigger. The recorded signals were the result of sparks and bursts generated by a repetitive Marx generator. A thermal imaging camera, a high speed camera and an audio recorder were used to obtain the necessary data for synchronization and characterization. Moreover, a piezoelectric sensor was applied for shock waves characterization during the early stages of bursts. In the first place, different data with evident time shifts were acquired. Then, A set of simple operations such as maximum selection and localization, threshold comparison, Euclidean distance calculation and minimization were employed for signal analysis and pattern matching to ensure a good data synchronization, which allowed a detailed analysis of the phenomenon in the end.