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Sensors 2013, 13(1), 848-864; doi:10.3390/s130100848

Hybrid Radar Emitter Recognition Based on Rough k-Means Classifier and Relevance Vector Machine

School of Electronics and Information Technology, Harbin Institute of Technology, Harbin 150001, China
Department of Electronic Engineering, King's College London, Strand, London, WC2R 2LS, UK
Author to whom correspondence should be addressed.
Received: 17 September 2012 / Revised: 11 December 2012 / Accepted: 27 December 2012 / Published: 11 January 2013
(This article belongs to the Section Physical Sensors)
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Due to the increasing complexity of electromagnetic signals, there exists a significant challenge for recognizing radar emitter signals. In this paper, a hybrid recognition approach is presented that classifies radar emitter signals by exploiting the different separability of samples. The proposed approach comprises two steps, namely the primary signal recognition and the advanced signal recognition. In the former step, a novel rough k-means classifier, which comprises three regions, i.e., certain area, rough area and uncertain area, is proposed to cluster the samples of radar emitter signals. In the latter step, the samples within the rough boundary are used to train the relevance vector machine (RVM). Then RVM is used to recognize the samples in the uncertain area; therefore, the classification accuracy is improved. Simulation results show that, for recognizing radar emitter signals, the proposed hybrid recognition approach is more accurate, and presents lower computational complexity than traditional approaches. View Full-Text
Keywords: hybrid recognition; rough boundary; uncertain boundary; computational complexity hybrid recognition; rough boundary; uncertain boundary; computational complexity

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Yang, Z.; Wu, Z.; Yin, Z.; Quan, T.; Sun, H. Hybrid Radar Emitter Recognition Based on Rough k-Means Classifier and Relevance Vector Machine. Sensors 2013, 13, 848-864.

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