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http://dx.doi.org/10.5515/KJKIEES.2014.25.6.700

Extraction of the JEM Component in the Observation Range of Weakly Present JEM Based on Complex EMD  

Park, Ji-Hoon (Department of Electronic Engineering, Korea Advanced Institute of Science and Technology, KAIST)
Yang, Woo-Yong (Department of Electronic Engineering, Korea Advanced Institute of Science and Technology, KAIST)
Bae, Jun-Woo (Samsung Thales Ltd.)
Kang, Seong-Cheol (Department of Electronic Engineering, Korea Advanced Institute of Science and Technology, KAIST)
Kim, Chan-Hong (Agency for Defense Development)
Myung, Noh-Hoon (Department of Electronic Engineering, Korea Advanced Institute of Science and Technology, KAIST)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.6, 2014 , pp. 700-708 More about this Journal
Abstract
Jet engine modulation(JEM) is a frequency modulation phenomenon of the radar signal induced by electromagnetic scattering from a rotating jet engine turbine. Although JEM can be used as a representative radar target recognition method by providing unique information on the target, its recognition performance may be degraded in the observation range of weakly present JEM. Hence, this paper presents a method for extracting the JEM component by decomposing the radar signal into intrisic mode functions(IMFs) via complex empirical mode decomposition(CEMD) and by combining them based on signal eccentricity. Its application to various signals demonstrated that the proposed method improved the clarity of JEM analysis and could extend the effective observation range of JEM.
Keywords
Complex Empirical Mode Decomposition; Jet Engine Modulation; Radar Target Recognition; Signal Eccentricity;
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