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Linear Dynamic Model Based Radar HRRP Target Recognition under Small Training Set Conditions |
Wang Peng-hui Liu Hong-wei Du Lan Pan Mian Zhang Xue-feng |
National Key Lab of Radar Signal Processing, Xidian University, Xi’an 710071, China |
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Abstract To relax the heavy requirement of training sample size in the radar High Resolution Range Profile (HRRP) target recognition, a linear dynamic model based recognition method is proposed. Firstly, the statistical characteristic of HRRP’s frequency spectrum is analyzed and considered to be a Wide Sense Stationary (WSS) process. Then a linear dynamic model is employed to model the amplitude of frequency spectrum and an Expectation Maximization (EM) algorithm is adopted to estimate the model parameters. Finally, experimental results based on measured data show that the proposed method can obtain satisfactory recognition accuracy and rejection performance even with a very few training samples.
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Received: 03 July 2011
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Corresponding Authors:
Wang Peng-hui
E-mail: wangpenghui@mail.xidian.edu.cn
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