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Feasibility Pump Algorithm for Sparse Representation under Gaussian Noise

机译:高斯噪声下稀疏表示的可行性泵算法

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摘要

In this paper, the Feasibility Pump is adapted for the problem of sparse representations of signals affected by Gaussian noise. This adaptation is tested and then compared to Orthogonal Matching Pursuit (OMP) and the Fast Iterative Shrinkage-Thresholding Algorithm (FISTA). The feasibility pump recovers the true support much better than the other two algorithms and, as the SNR decreases and the support size increases, it has a smaller recovery and representation error when compared with its competitors. It is observed that, in order for the algorithm to be efficient, a regularization parameter and a weight term for the error are needed.
机译:在本文中,可行性泵适用于受高斯噪声影响的信号稀疏表示的问题。测试这种适应,然后与正交匹配追踪(OMP)和快速迭代收缩阈值算法(Fista)进行比较。可行性泵比其他两种算法更好地恢复真正的支持,随着SNR的降低,并且支撑尺寸增加,与其竞争对手相比,它具有较小的恢复和表示误差。观察到,为了使算法有效,需要正则化参数和误差的权重期。

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