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An efficient method for 3D reconstruction of nanostructures based on the SEM imaging principle is reported in this paper. By analyzing the contrast of one single top-view SEM image which contains all the surface information of visible structures, both the 3D morphology and shape parameters of nanostructures can be obtained. Thus it can provide more details of nanostructures and conduct subsequent...
A new algorithm called signal subspace extraction is presented for detecting and estimating the target echo in reverberation. The new algorithm maintains the benefit of the principal component inverse algorithm, moreover shows better performance with a more reasonable reverberation model. Further, a block forward matrix is proposed to extend the algorithm to the space-time array problem. The new algorithm...
A kind of method for small-shaped space target recognition was proposed in this paper based on feature extraction with wavelet decomposition and formative support vector machine (FSVM) with sequential minimal optimization (SMO) algorithm. Firstly, the significance and characteristics of space target recognition were discussed and a two-stage recognition strategy was designed. And then aiming at the...
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