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. Author manuscript; available in PMC: 2021 Mar 19.
Published in final edited form as: IEEE Trans Signal Process. 2020 Feb 24;68:1589–1601. doi: 10.1109/tsp.2020.2975943

Fig. 2.

Fig. 2.

(a) The signal used to generate our synthetic data, with the ℓ2 norm scaled to L. (b), (c) Signals corrupted by additive white Gaussian noise with zero mean and standard deviations σ =1 and σ =2.