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arXiv 1912.04572cs.ITmath.IT
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一种自适应贝叶斯结构稀疏信源恢复框架

An Adaptive Bayesian Framework for Recovery of Sources with Structured Sparsity

Ali Bereyhi, Ralf R. Müller

摘要:

在过采样自适应感测(OAS)中,在多个子帧中收集噪声测量。每个子帧中的感测基础根据从先前测量中利用的一些后验信息来适配。该框架显着优于经典的非自适应压缩感知方法。本文将OAS的概念扩展到具有结构稀疏性的信号。提出了一种基于结构化正交感知的低复杂度OAS算法。我们的研究表明,该算法优于传统的非自适应压缩感知框架与组LASSO恢复通过一个相当小的子帧数量。

英文摘要:

In oversampled adaptive sensing (OAS), noisy measurements are collected in multiple subframes. The sensing basis in each subframe is adapted according to some posterior information exploited from previous measurements. The framework is shown to significantly outperform the classic non-adaptive compressive sensing approach. This paper extends the notion of OAS to signals with structured sparsity. We develop a low-complexity OAS algorithm based on structured orthogonal sensing. Our investigations depict that the proposed algorithm outperforms the conventional non-adaptive compressive sensing framework with group LASSO recovery via a rather small number of subframes.

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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