dcissim

Version 1.1 (182 KB) by Jingze You

algorithm and verify code for Discrete Combined Invariant Subspace & Subspace Identification Method

https://github.com/wyqy/dcissim

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Updated 11 Oct 2023

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published in Systems & Control Letters, DOI

a novel LTI system identification method

REQUIREMENTS:

the excitation (input) signal should be periodical

HIGHLIGHTS:

estimate the system parameter and covariance matrices of noise altogether;
use time-domain data, but as fast as frequency-domain method;
only matrix operation used, easy to port into embedded environment.

Cite As

Jingze You (2026). dcissim (https://github.com/wyqy/dcissim/releases/tag/1.1), GitHub. Retrieved March 2, 2026.

You, Jingze, et al. “Combined Invariant Subspace &Amp\Mathsemicolon Frequency-Domain Subspace Method for Identification of Discrete-Time MIMO Linear Systems.” Systems &Amp\Mathsemicolon Control Letters, vol. 181, Elsevier BV, Nov. 2023, p. 105641, doi:10.1016/j.sysconle.2023.105641.

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Requires

For identification: only Optimization Toolbox needed; For validation: all other toolboxes. CVX Toolbox is needed for estimating covariance matrix

MATLAB Release Compatibility

Created with R2023a

Compatible with R2021a and later releases

Platform Compatibility

Windows macOS Linux

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Version	Published	Release Notes
1.1	11 Oct 2023	See release notes for this release on GitHub: https://github.com/wyqy/dcissim/releases/tag/1.1	Download
1.0	18 Jul 2023		Download

To view or report issues in this GitHub add-on, visit the GitHub Repository.

MLA	You, Jingze, et al. “Combined Invariant Subspace &Amp\Mathsemicolon Frequency-Domain Subspace Method for Identification of Discrete-Time MIMO Linear Systems.” Systems &Amp\Mathsemicolon Control Letters, vol. 181, Elsevier BV, Nov. 2023, p. 105641, doi:10.1016/j.sysconle.2023.105641.
APA	You, J., Huang, C., & Zhang, H. (2023). Combined invariant subspace &amp\mathsemicolon frequency-domain subspace method for identification of discrete-time MIMO linear systems. Systems &amp\mathsemicolon Control Letters, 181, 105641. Elsevier BV. Retrieved from https://doi.org/10.1016%2Fj.sysconle.2023.105641
BibTeX	@article{You_2023, doi = {10.1016/j.sysconle.2023.105641}, url = {https://doi.org/10.1016%2Fj.sysconle.2023.105641}, year = 2023, month = {nov}, publisher = {Elsevier {BV}}, volume = {181}, pages = {105641}, author = {Jingze You and Chao Huang and Hao Zhang}, title = {Combined invariant subspace {\&}amp$\mathsemicolon$ frequency-domain subspace method for identification of discrete-time {MIMO} linear systems}, journal = {Systems {\&}amp$\mathsemicolon$ Control Letters} }