Nonlinear Observer for Descriptor Systems with IQC

Nonlinear Observer for Descriptor Systems with Incremental Quadratic Constraints

The code implements the Observer design proposed in the following work:

Moysis, L., Gupta, M. K., Mishra, V., Marwan, M., & Volos, C. (2020). Observer design for rectangular descriptor systems with incremental quadratic constraints and nonlinear outputs—Application to secure communications. International Journal of Robust and Nonlinear Control, 30(18), 8139-8158.

https://onlinelibrary.wiley.com/doi/full/10.1002/rnc.5233

Please cite this work if you use the code below.

The code is broken in sections. Run each section separately using ctr+enter, or by clicking the 'run section' button.

Details about the observer design are provided in the paper. We suggest that you read the work first, to get a grasp of the code.

Check also the recent review on the topic:

https://link.springer.com/article/10.1007/s00034-024-02617-1

and the videos discussion descriptor systems and observer design:

https://www.youtube.com/watch?v=gYrmrLSS_fQ

https://www.youtube.com/watch?v=7w_wBaut4GU

Lazaros Moysis

Youtube channel: https://www.youtube.com/@lazarosmoysis5095

RG: https://www.researchgate.net/profile/Lazaros-Moysis