Results 31 to 40 of about 30,913 (261)
Non-convex block-sparse compressed sensing with coherent tight frames
EURASIP Journal on Advances in Signal Processing, 2020 In this paper, we present a non-convex ℓ 2/ℓ q ...
Xiaohu Luo +4 more
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Partitions of equiangular tight frames
Linear Algebra and its Applications, 2017 19 pages, 2 ...
James Rosado, Hieu D. Nguyen, Lei Cao
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Mutually unbiased frames [PDF]
Quantum, 2022 In this work, the concept of mutually unbiased frames is introduced as the most general notion of unbiasedness for sets composed by linearly independent and normalized vectors.
Fabián Caro Pérez +2 more
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Continuous Shearlet Tight Frames [PDF]
Journal of Fourier Analysis and Applications, 2010 Based on the shearlet transform we present a general construction of continuous tight frames for L²(ℝ²) from any sufficiently smooth function with anisotropic moments. This includes for example compactly supported systems, piecewise polynomial systems, or both.
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Tetris Tight Frames Construction via Hadamard Matrices
Abstract and Applied Analysis, 2014 We present a new method to construct unit norm tight frames by applying altered Hadamard matrices. Also we determine an elementary construction which can be used to produce a unit norm frame with prescribed spectrum of frame operator.
A. Abdollahi, M. Monfaredpour
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FTN multicarrier transmission based on tight Gabor frames
EURASIP Journal on Wireless Communications and Networking, 2017 A multicarrier signal can be synthesized thanks to a symbol sequence and a Gabor family (i.e., a regularly time–frequency shifted version of a generator pulse).
Alexandre Marquet +3 more
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Frontiers in Earth Science, 2021 Strong heterogeneity of pore microstructures leads to complicated velocity-porosity relationships in tight sandstone that cannot be well explained by conventional empirical formulas.
Zhiqi Guo +5 more
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Tight wavelet frames in Lebesgue and Sobolev spaces
Journal of Function Spaces and Applications, 2004 We study tight wavelet frame systems in Lp(ℝd) and prove that such systems (under mild hypotheses) give atomic decompositions of Lp(ℝd) for 1≺p≺∞. We also characterize Lp(ℝd) and Sobolev space norms by the analysis coefficients for the frame. We consider
L. Borup, R. Gribonval, M. Nielsen
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Constructions of biangular tight frames and their relationships with equiangular tight frames
, 2017 19 ...
Haas, John I. +3 more
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Finding Subsampling Index Sets for Kronecker Product of Unitary Matrices for Incoherent Tight Frames
Applied Sciences, 2022 Frames are recognized for their importance in many fields of communications, signal processing, quantum physics, and so on. In this paper, we design an incoherent tight frame by selecting some rows of a matrix that is the Kronecker product of Fourier and
Jooeun Kwon, Nam Yul Yu
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