arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.07145cs.ITmath.ITmath.OC
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通过最小化块$q$比稀疏度的块稀疏信号恢复

Block sparse signal recovery via minimizing the block $q$-ratio sparsity

Zhiyong Zhou

摘要:

在本文中,我们提出了一种方法,块稀疏信号恢复,最大限度地减少块$q$比稀疏$\left(\lVert z\rVert_{2,1}/\lVert z\rVert_{2,q}\right)^{\frac{q}{q-1}}$与$q\in[0,\infty]$。对于$1<q\leq\infty$的情形,给出了$\ell_2$有界噪声和$\ell_{2,\infty}$有界噪声两种情形的理论分析和计算算法。相应的无约束模型也进行了研究。数值实验证明了该算法在块稀疏信号重构中的优越性能。

英文摘要:

In this paper, we propose a method for block sparse signal recovery that minimizes the block $q$-ratio sparsity $\left(\lVert z\rVert_{2,1}/\lVert z\rVert_{2,q}\right)^{\frac{q}{q-1}}$ with $q\in[0,\infty]$. For the case of $1<q\leq\infty$, we present the theoretical analyses and the computing algorithms for both cases of the $\ell_2$-bounded and $\ell_{2,\infty}$-bounded noises. The corresponding unconstrained model is also investigated. Its superior performance in block sparse signal reconstruction is demonstrated by numerical experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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