Robust and fast algorithm for estimating fundamental periodicity of jet engine modulation signals

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Jet engine modulation (JEM), a modulation phenomenon induced by a rotating jet engine compressor, is a representative feature extracted from the radar for aircraft target recognition. In this study, the authors present a robust and fast algorithm for extracting the spool rate, which imparts fundamental periodicity to JEM signals. First, a wavelet decomposition with Meyer wavelet was applied to the analytic form of the JEM signal. Then, the decomposition components were combined to achieve a sufficient energy and minimise the mean of the JEM auto-correlation. Finally, the peak detection algorithm was employed for automatic estimation of the spool rate. Application results of measured JEM signals demonstrated that the proposed algorithm is effective for stable and accurate extraction of the jet engine information
Publisher
INST ENGINEERING TECHNOLOGY-IET
Issue Date
2016-08
Language
English
Article Type
Article
Keywords

RADAR; MODEL

Citation

IET RADAR SONAR AND NAVIGATION, v.10, no.7, pp.1286 - 1294

ISSN
1751-8784
DOI
10.1049/iet-rsn.2015.0526
URI
http://hdl.handle.net/10203/213235
Appears in Collection
EE-Journal Papers(저널논문)
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