Vol. 104

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2021-09-07

Aircraft Classification Method Based on EEMD and Multifractal Correlation

By Junyong Hu, Qiusheng Li, Qianli Zhang, and Jingran Su
Progress In Electromagnetics Research M, Vol. 104, 159-170, 2021
doi:10.2528/PIERM21071202

Abstract

The research goal of low-resolution radar aircraft target classification is to analyze the category of the given low-resolution radar aircraft target echo. In existing solutions, the feature extraction methods based on rotating modulation spectrum have good performance, such as the complex cepstrum method, autocorrelation method, cycle diagram method, autoregressive model power spectrum method, and singular value decomposition method. Most of these methods are more complicated in calculations, and practical applications often require higher pulse frequencies and longer observation times, which are greatly restricted. In this paper, a classification method based on ensemble empirical mode decomposition and multifractal correlation (CMEEMDMFC) is proposed. The basic design idea is to obtain the intrinsic mode functions (IMFs) by using the signal decomposition ability of ensemble empirical mode decomposition (EEMD) and select some components which are beneficial for improving the signal-to-noise ratio (SNR) for recombination. Then extract the corresponding multifractal correlation (MFC) features from the new signals for recognition. For verifying the validity of the model, a comparison model was selected to test on the same data set. Experimental results show that the proposed model performs well in classification accuracy.

Citation


Junyong Hu, Qiusheng Li, Qianli Zhang, and Jingran Su, "Aircraft Classification Method Based on EEMD and Multifractal Correlation," Progress In Electromagnetics Research M, Vol. 104, 159-170, 2021.
doi:10.2528/PIERM21071202
http://www.jpier.org/PIERM/pier.php?paper=21071202

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