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1.
A central problem in compressed sensing is the construction of sensing matrices. In this paper, we show how to construct sensing matrices by using semilattices, and give many examples of sensing matrices constructed from specific semilattices. Moreover, we show that the new construction for some examples with small parameters gives better sensing matrices compared with previously known constructions. 相似文献
2.
Zengti Li Suogang Gao Hongjie Du Feng Zou Weili Wu 《Journal of Combinatorial Optimization》2010,20(4):325-334
In this paper, we construct two classes of t×n,s
e
-disjunct matrix with subspaces in orthogonal space
\mathbbFq(2n+1)\mathbb{F}_{q}^{(2\nu+1)}
of characteristic 2 and exhibit their disjunct properties. We also prove that the test efficiency t/n of constructions II is smaller than that of D’yachkov et al. (J. Comput. Biol. 12:1129–1136, 2005). 相似文献