Results 61 to 70 of about 4,117 (168)
On Toeplitz and Kronecker structured covariance matrix estimation
2010 IEEE Sensor Array and Multichannel Signal Processing Workshop, 2010 A number of signal processing applications require the estimation of covariance matrices. Sometimes, the particular scenario or system imparts a certain theoretical structure on the matrices that are to be estimated. Using this knowledge allows the design of algorithms exploiting such structure, resulting in more robust and accurate estimators ...
Wirfält, Petter, Jansson, Magnus
openaire +3 more sources
Seismic sparse-spike deconvolution via Toeplitz-sparse matrix factorization
, 2015 We have developed a new sparse-spike deconvolution (SSD) method based on Toeplitz-sparse matrix factorization (TSMF), a bilinear decomposition of a matrix into the product of a Toeplitz matrix and a sparse matrix, to address the problems of lateral ...
Gao, Jinghuai +11 more
core +1 more source
An Improved Toeplitz Measurement Matrix for Compressive Sensing
International Journal of Distributed Sensor Networks, 2014 Compressive sensing (CS) takes advantage of the signal's sparseness in some domain, allowing the entire signal to be efficiently acquired and reconstructed from relatively few measurements. A proper measurement matrix for compressive sensing is significance in above processions.
Xu Su +4 more
openaire +2 more sources
MATHICSE Technical Report : Fast computation of the matrix exponential for a Toeplitz matrix
The computation of the matrix exponential is a ubiquitous operation in numerical mathematics, and for a general, unstructured n×n matrix it can be computed in O(n3) operations.
Kressner, Daniel, Luce, Robert
core +1 more source
COMPUTING THE STRUCTURED PSEUDOSPECTRUM OF A TOEPLITZ MATRIX AND ITS EXTREME POINTS
, 2012 The computation of the structured pseudospectral abscissa and radius (with respect to the Frobenius norm) of a Toeplitz matrix is discussed and two algorithms based on a low-rank property to construct extremal perturbations are presented.
NOSCHESE, Silvia +2 more
core +2 more sources
A study of eigenvalue distribution of Hermitian Toeplitz matrix
, 2019 Hermitian Toeplitz matrix arises from many real applications, such as solving differential equations by using finite difference method. In this paper, we consider the convergence rate of solving linear system Ax = b with the Hermitian Toeplitz matrix by ...
, CHEONG SOI FONG
core
A Reduced-Complexity Partial-Interference-Cancellation Group Decoder for STBCs
In this paper, we propose a reduced-complexity implementation of partial interference cancellation group decoder with successive interference cancellation (PIC-GD-SIC) by employing the theory of displacement structures.
Hari, K. V. S. +2 more
core
, 2012 [[abstract]]In many electromagnetic field problems, matrix equations were always deduced from using the method of moment. Among these matrix equations, some of them might require a large amount of computer memory storage which made them unrealistic to be
Ho, Min-Hua; Chen, Mingchih
core
The eigenproblem of a tridiagonal 2-Toeplitz matrix
, 1994 The characteristic polynomial of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the three point Chebyshev recurrence relationship.
Gover, M.J.C.
core +1 more source
Newton type methods for computing the smallest eigenvalue of a symmetric Toeplitz matrix
, 2008 this paper we improve the performance of the new method while keeping its ...
Toeplitz Matrix, W. Mackens, H. Voss
core