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2012-11-03
Sparse Time-Frequency Representation Based Feature Extraction Method for Landmine Discrimination
By
Progress In Electromagnetics Research, Vol. 133, 459-475, 2013
Abstract
Low-frequency ultra-wideband synthetic aperture radar is a promising technology for landmine detection. According to the scattering characteristics of body-of-revolution (BOR) along with azimuth angles, a discriminator based on Bayesian decision rule is proposed, which uses sequential features, i.e. double-hump distance. First, the algorithm estimates the target scatterings in all azimuth angles based on regions of interest. Second, sequential aspect features are extracted by sparse time-frequency representation. Third, the distributions of features are obtained by training samples, and then the posterior probability of landmine class is computed as an input to the classifier adopting Mahalanobis distance. The experimental results indicate that the proposed algorithm is effective in BOR target discrimination.
Citation
Yuming Wang, Qian Song, Tian Jin, Yunfei Shi, and Xiao-Tao Huang, "Sparse Time-Frequency Representation Based Feature Extraction Method for Landmine Discrimination," Progress In Electromagnetics Research, Vol. 133, 459-475, 2013.
doi:10.2528/PIER12082104
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