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In order to solve performance reduction of space-time adaptive processing caused by interfering targets mixing in clutter training samples, a robust training samples detection method based on prior knowledge and sparse recovery is proposed. Firstly, the object region in unit to be detected is locked. Then the sparse complete base is got by discretizing the whole Angle-Doppler plane. After that, hollow...
Local distinguishability of quantum states is a basic problem in quantum information theory. For an arbitrary group of entangled states in d ⊗ d bipartite system, Singal presented a subspace related to these states, and then he determined that the group of states can be distinguished by one-way local operations and classical communication(1-LOCC) if this subspace contains a maximally Abelian subspace...
In this paper, a method for the alignment of face images is proposed. We first extract SIFT features from the set of images, match features between each two images. Then we cluster the image according to the number of matching keypoints,in each category. We use the congealing algorithm to train and generate the model. The experiments show that the features are invariant to image scaling and rotation,...
Markov random field (MRF) is a common used consistent approach in image segmentation. However it has a drawback of low computation speed. A fast definite algorithm of Markov random field is proposed in this paper, which is based on common used frame of maximum posterior probability and Potts model. A representation of binary label field is adopted to describe the membership of each pixel to one of...
A compact Ultra-Wide Band (UWB) antenna with sharp band-notched characteristic and controllable notched bandwidth is presented. The band-rejected structure is realized by adding two half wavelength U-shape Stepped Impedance Resonators (SIR) around the feed-line. The two U-shaped resonators with different placement modes couple together to form a sharp band-rejection. A good impedance matching is obtained...
A novel structure for designing a dual-band bandpass filter(BPF) using asymmetrical stub-loaded resonators(SLRs) with independently controllable center frequencies and bandwidth is presented in this paper. By appropriately selecting the length of the SLR, the harmonic frequencies can be tuned for generating the dual-passband response. Using this structure to the filter, the bandwidth of each passband...
Wood drying is an important part to safeguard and improve wood quality, reduce wood loss and enhance utilization efficiency, and also itpsilas a complex strong coupling, nonlinear dynamic system. This paper takes the microwave vacuum drying (MVD) kiln as the object, utilizes the fuzzy control principle to develop one kind of fuzzy controller for the microwave vacuum wood drying through analyzing the...
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