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Unbiased Group-Sparsity Sensing Using Quadratic Envelopes

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Academic year: 2021

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Figure

Fig. 1: Signals and oracle solutions. Top row: noise-free sig- sig-nals X gt (blue) and oracle solutions X or (red) for SNR=10dB;
Fig. 3: ` 1 support recovery. Success rate of finding the true support with the ` 1 approach (2) for different values of λ.
Fig. 5: Hyperparameter selection. Success rate of finding X or with the proposed method (4) for different values of µ and signals, and rules of thumb (8) (white and red lines, respectively): SNR=20dB (top row), SNR=10dB( bottom row).

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