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Blind super-resolution of point sources via fast iterative hard thresholding (2109.11414v3)
Published 23 Sep 2021 in cs.IT and math.IT
Abstract: In this work, we develop a provable fast algorithm for blind super-resolution based on the low rank structure of vectorized Hankel matrix associated with the target matrix. Theoretical results show that the proposed method converges to the ground truth with linear convergence rate. Numerical experiments are also conducted to illustrate the linear convergence and effectiveness of the proposed approach.
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