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- Title
HRR Profiles Time-Frequency Non-Negative Sparse Coding for SAR Target Classification.
- Authors
Xinzheng Zhang; Qizheng Wu; Shujun Liu; Jianhong Qin; Wei Song
- Abstract
A new approach to classify synthetic aperture radar (SAR) targets is presented based on high range resolution (HRR) profiles time-frequency matrix non-negative sparse coding (NNSC). Firstly, SAR target images have been converted into HRR profiles. And the non-negative time-frequency matrix for each of the profiles is obtained by using an adaptive Gaussian representation (AGR). Secondly, NNSC is applied to learn target time-frequency basis of the training set. Feature vectors are constructed by projecting each HRR profile time-frequency matrix to low dimensional time-frequency basis space. Finally, the target classification decision is found with support vector machine and nearest neighbor algorithm respectively. To demonstrate the performance of the proposed approach, experiments are performed with Moving and Stationary Target Acquisition and Recognition (MSTAR) public release SAR database. The experimental results support the effectiveness of the proposed technique for SAR target classification.
- Subjects
SYNTHETIC aperture radar; NONNEGATIVE matrices; SUPPORT vector machines; NEAREST neighbor analysis (Statistics); TIME-frequency analysis
- Publication
Progress in Electromagnetics Research B, 2014, Vol 60, p63
- ISSN
1937-6472
- Publication type
Article
- DOI
10.2528/pierb14040401