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arXiv 1601.06009cs.ITmath.IT
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观测值受损的压缩感知

Compressed sensing with corrupted observations

Dongcai Su

摘要:

我们提出了一个加权l1最小化恢复稀疏的信号矢量和损坏的噪声矢量从线性测量时的传感矩阵A是一个m × n行i.i.d次高斯矩阵。我们得到均匀和非均匀的恢复保证时,损坏的意见占据一个恒定的分数的总测量,只要信号矢量是稀疏的。在一致恢复保证下,本文所要求的信号向量基数的上界是渐近最优的。而在非均匀恢复保证中,我们允许损坏的测量的比例任意增长到接近1,并且信号向量的基数的上界比最近的文献[1]中的那些要好一个ln(n)因子。

英文摘要:

We proposed a weighted l1 minimization to recover a sparse signal vector and the corrupted noise vector from a linear measurement when the sensing matrix A is an m by n row i.i.d subgaussian matrix. We obtain both uniform and nonuniform recovery guarantees when the corrupted observations occupy a constant fraction of the total measurement, provided that the signal vector is sparse enough. In the uniform recovery guarantee, the upper-bound of the cardinality of the signal vector required in this paper is asymptotically optimal. While in the non-uniform recovery guarantee, we allow the proportion of corrupted measurements grows arbitrarily close to 1, and the upper-bound of the cardinality of the signal vector is better than those in a recent literature [1] by a ln(n) factor.

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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