@inproceedings{f0f592c88fa049729c2a191c6c6888ae,
title = "Research on linear frequency modulation pulse compression in electromagnetic ultrasonic thickness measurement",
abstract = "The energy conversion efficiency of the electromagnetic ultrasonic transducer (EMAT) is extremely low. To solve this problem, this paper applied linear frequency modulation (LFM) pulse compression technology to electromagnetic ultrasonic thickness measurement to improve the signal-to-noise ratio. The EMAT excited by chirp signal was simulated by finite element analysis, and the echo signal obtained by the simulation was subjected to pulse compression. After adding noise, the result showed that the EMAT signal-to-noise ratio was increased more than 6dB compared with the echo signal excited by Toneburst signal. In addition, this paper also applied spectrum modification method to suppress the sidelobes of the output signal, further improving the signal-to-noise ratio by 1.6dB.",
keywords = "EMAT, Pulse compression, Sidelobe suppression, Spectrum modification",
author = "Wang, \{Sheng Bin\} and Wang, \{Shu Juan\} and Bao Liang and Jiang, \{Chuan Liu\} and Zhao, \{Chao Fan\} and Zhou, \{Wei Hang\}",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2020 ; Conference date: 20-11-2020 Through 22-11-2020",
year = "2020",
month = nov,
day = "20",
doi = "10.1109/FENDT50467.2020.9337520",
language = "英语",
series = "Proceedings of 2020 IEEE Far East NDT New Technology and Application Forum, FENDT 2020",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "145--149",
editor = "Chunguang Xu",
booktitle = "Proceedings of 2020 IEEE Far East NDT New Technology and Application Forum, FENDT 2020",
address = "美国",
}