Results 61 to 70 of about 16,496,952 (144)
Compressive Color Pattern Detection using Partial Orthogonal Circulant Sensing Matrix
, 2020 International audienceOne key issue in compressive sensing is to design a sensing matrix that is random enough to have a good signal reconstruction quality and that also enjoys some desirable properties such that orthogonality or being circulant.
Helbert, David, Rousseau, Sylvain
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On the spectral norm of a doubly stochastic matrix and level-k circulant matrix
A simple proof using Birkhoff theorem is given for the result that the spectral norm of a doubly stochastic matrix is 1. We also show that the result generalizes the results of İpek, Bozkurt, and Jiang and Zhou on circulant matrices and rr-circulant ...
Jiang Zhao-Lin, Tam Tin-Yau
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Eigenvectors of Compound-Circulant and Alternating Circulant Matrices
, 2002 A circulant matrix whose elements are square submatrices is called a compound-circulant matrix. The eigenvectors and eigenvalues had been found for symmetric compound-circulant matrices, and that method is extended to general compound-circulant matrices.
Tee, Garry J.
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Exploring Harmonic and Hyper-harmonic Narayana Numbers through Circulant Structures and Matrix Norms
This study investigates the structural and analytical properties of harmonic and hyper-harmonic Narayana numbers, extending classical results on harmonic and hyper-harmonic numbers.
Bahar Kuloǧlu
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Explicit Form of the Inverse Matrices of Tribonacci Circulant Type Matrices
, 2015 It is a hot topic that circulant type matrices are applied to networks engineering. The determinants and inverses of Tribonacci circulant type matrices are discussed in the paper. Firstly, Tribonacci circulant type matrices are defined.
Li Liu, Zhaolin Jiang
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Encoders for block-circulant LDPC codes [PDF]
, 2009 Methods and apparatus to encode message input symbols in accordance with an accumulate-repeat-accumulate code with repetition three or four are disclosed. Block circulant matrices are used.
Thorpe, Jeremy C. +6 more
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Generalized circulant Strang-type preconditioners
, 2011 Strang's proposal to use a circulant preconditioner for linear systems of equations with a Hermitian positive definite Toeplitz matrix has given rise to considerable research on circulant preconditioners.
NOSCHESE, Silvia +2 more
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A Fast GPU Algorithm for the Inverse of a Circulant Matrix
, 2011 Circulant matrix is a special case of Toeplitz matrix, which is widely used in many domains of specialization, especially in image and digital signal processing. Calculating the inverse of this category of matrices consists of the following three steps: (
Rui Xia Zhang, Zuo Yong Zheng
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On geometric circulant matrices with geometric sequence [PDF]
The article examines a special case of geometric circulant matrices, where the entries in the first row form a geometric progression of common ratio q in R-{0} and of scale factor g in C- {0}.
Morneau-Guérin, Frédéric
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AGGREGATED CIRCULANT MATRIX BASED LDPC CODES
, 2008 This paper presents a variation of circulant matrix based LDPC codes which allows more than one circulant identity matrix in one submatrix. The aggregated LDPC supports higher decoding throughput with small increase in datapath complexity.
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