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• W2149662350 abstract "The class of Fourier matrices is of special importance in compressed sensing (CS). This paper concerns deterministic construction of compressed sensing matrices from Fourier matrices. By using Katz' character sum estimation, we are able to design a deterministic procedure to select rows from a Fourier matrix to form a good compressed sensing matrix for sparse recovery. The sparsity bound in our construction is similar to that of binary CS matrices constructed by DeVore which greatly improves previous results for CS matrices from Fourier matrices. Our approach also provides more flexibilities in terms of the dimension of CS matrices. As a consequence, our construction yields an approximately mutually unbiased bases from Fourier matrices which is of particular interest to quantum information theory. This paper also contains a useful improvement to Katz' character sum estimation for quadratic extensions, with an elementary and transparent proof. Some numerical examples are included." @default.
• W2149662350 created "2016-06-24" @default.
• W2149662350 creator A5058662188 @default.
• W2149662350 creator A5066762019 @default.
• W2149662350 date "2013-01-02" @default.
• W2149662350 modified "2023-09-25" @default.
• W2149662350 title "Compressed Sensing Matrices from Fourier Matrices" @default.
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• W2149662350 doi "https://doi.org/10.48550/arxiv.1301.0373" @default.
• W2149662350 hasPublicationYear "2013" @default.
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