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Classification of radar emitter signals based on the feature of time-frequency atoms

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4 Author(s)
Ming Zhu ; Chengdu Univ. of Inf. Tech., Chengdu ; Wei-dong Jin ; Yun-Wei Pu ; Lai-Zhao Hu

An effective approach based on the feature of time-frequency atoms for classification of the radar emitter signals is presented. Firstly, we introduce a fast matching pursuit (MP) algorithm, which using improved quantum genetic algorithm (IQGA) to reduce the time-complexity at each step of standard MP, to decompose the signal into a linear expansion of Gaussian chirplet time-frequency atoms. Then, the atoms characteristics are re-extracted to constitute the strong- discrimination atoms feature vector. Experimental results of atoms feature extraction of 5 typical radar emitter signals shows that the atom features have good performances of clustering the same radar signals and separating the different radar signals, which confirms the validity and feasibility of the proposed scheme of signals classification.

Published in:

Wavelet Analysis and Pattern Recognition, 2007. ICWAPR '07. International Conference on  (Volume:3 )

Date of Conference:

2-4 Nov. 2007

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