Block Circulant Matrix package for MATLAB
Circulant matrices arise in many matrix problems where the underlying mathematical model has rotational symmetry. In many problems, the problem representation is not a simple circulant matrix, but a block-circulant matrix. The @BlockCirculant object allows compact representation of block-circulant matrices. It supports common matrix operations such as +, - ,*, \, inverse, pseudoinverse, subscripting, and concatenation. Large speedup factors are achievable for this type of matrix by using the FFT to perform the typical O(N^3) operations.
The matrices can be real or complex. The package includes the @BlockCirculant definition, a test program, and documentation showing examples of the speedup factors for large matrix problems.
This version includes documentation corrections and code corrections for the pseudoinverse operation
Cite As
Stephen Forsythe (2024). Block Circulant Matrix package for MATLAB (https://www.mathworks.com/matlabcentral/fileexchange/36414-block-circulant-matrix-package-for-matlab), MATLAB Central File Exchange. Retrieved .
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- Signal Processing > Signal Processing Toolbox > Transforms, Correlation, and Modeling > Transforms > Discrete Fourier and Cosine Transforms > Fast Fourier Transforms >
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Version | Published | Release Notes | |
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1.0.0.0 |