Rodrigo A. González

Rodrigo González photo 

Rodrigo A. González, Ph.D.
Postdoctoral Researcher
Control Systems Technology
Department of Mechanical Engineering
Eindhoven University of Technology
5612 AZ Eindhoven, the Netherlands

Mail: r.a.gonzalez@tue.nl
Google Scholar

About me

I was born in September 24th, 1992 in Viña del Mar, Chile. In November 2016 I received the MSc. in Electronic Engineering degree with a major in Automatic Control, together with my Electronics Engineering degree, at Universidad Técnica Federico Santa María (UTFSM) in Valparaíso, Chile.

In October 2017, I began my Ph.D. studies at KTH under the supervision of Cristian R. Rojas. I successfully defended my Ph.D. Thesis in May 2022, with title "Continuous-time System Identification: Refined Instrumental Variables and Sampling Assumptions". I am currently a postdoctoral researcher in the Control Systems Technology Group at Eindhoven University of Technology, the Netherlands. My main interests are among the areas of system identification, signal processing, and control theory.

Among other interests, I enjoy reading, running, playing soccer and chess. I also like playing guitar (acoustic and electric) and bass (fretted and fretless).

News

  • February 26th, 2024: The paper "Identification of Wiener State-Space Models utilizing Gaussian Sum Smoothing" by Angel L. Cedeño, myself, Rodrigo Carvajal and Juan C. Agüero, was accepted for publication in Automatica.
  • February 22nd, 2024: The paper "Kernel-based identification using Lebesgue-sampled data" by myself, Koen Tiels and Tom Oomen, was accepted for publication in Automatica.
  • January 10th, 2024: News article about my visit to AC3E and UTFSM in Valparaíso, Chile.
  • January 9th, 2024: Together with A. Cedeño and J. C. Agüero, we organized the second version of the symposium Identification, Control and Applications (in Spanish) at Universidad Técnica Federico Santa María in Valparaíso, Chile.
  • January 2nd, 2024: New preprint, with Koen Classens, Cristian R. Rojas, James S. Welsh and Tom Oomen on additive identification of continuous-time systems in open and closed-loop.
  • December 11th, 2023- January 10th, 2024: I visited Juan Carlos Agüero's group at Universidad Técnica Federico Santa María in Chile, to work on state estimation and identification of state-space Wiener models.
  • September 24-27th, 2023: I presented/coauthored 2 posters at the 31st ERNSI Workshop in System Identification in Stockholm, Sweden.
  • July 12th, 2023: The following papers have been accepted for publication and presentation at the 2023 62nd IEEE Conference on Decision and Control (CDC) in Marina Bay Sands, Singapore in December 2023:
    1. On the Relation between Discrete and Continuous-time Refined Instrumental Variable Methods (Rodrigo A. González, Cristian R. Rojas, Siqi Pan and James S. Welsh, accepted as an LCSS-CDC paper)
    2. Nonlinear Bayesian Identification for Motor Commutation: Applied to Switched Reluctance Motors (Max van Meer, Rodrigo A. González, Gert Witvoet, Tom Oomen)
    3. Parametric Continuous-Time Blind System Identification (Augustus Elton, Rodrigo A. González, James S. Welsh, Cristian R. Rojas and Minyue Fu)
  • July 9-14th, 2023: I attended and presented 3 papers at the 22nd World Congress of the International Federation of Automatic Control (IFAC WC) in Yokohama, Japan.
  • June 25th, 2023: The abstract "Learning in Machines: From Data to Models, Control Performance, and Monitoring" by Tom Oomen's group for the First JSPS-NWO Seminar Research Network on Learning in Machines: New Perspectives for Future Nanoscale Production, can be found here.
  • May 30th, 2023: The paper "On the Relation between Discrete and Continuous-time Refined Instrumental Variable Methods" by myself, Cristian R. Rojas, Siqi Pan and James S. Welsh, was accepted for publication in the IEEE Control Systems Letters (L-CSS). The paper can be found online here.
  • March 21-23rd, 2023: I presented the work "Non-parametric continuous-time system identification with Lebesgue-sampled output measurements" in the 42nd Benelux meeting on Systems and Control in Elspeet, The Netherlands.
  • March 7th, 2023: The paper "On Filtering and Smoothing algorithms for Linear State-Space Models Having Quantized Output Data" by Angel L. Cedeño, myself, Boris I. Godoy, Rodrigo Carvajal and Juan C. Agüero, was accepted for publication in Mathematics.
  • March 3rd, 2023: The following papers have been accepted for publication and presentation at the 22nd IFAC World Congress, in Yokohama, Japan in July 2023:
    1. An EM algorithm for Lebesgue-sampled state-space continuous-time system identification (Rodrigo A. González, Angel L. Cedeño, María Coronel, Juan C. Agüero and Cristian R. Rojas)
    2. Identifying Lebesgue-sampled continuous-time impulse response models: A kernel-based approach (Rodrigo A. González, Koen Tiels and Tom Oomen)
    3. Parsimonious identification of continuous-time systems: A block-coordinate descent approach (Rodrigo A. González, Cristian R. Rojas, Siqi Pan and James S. Welsh)
    4. Blind non-parametric estimation of SISO continuous-time systems (Augustus Elton, Rodrigo A. González, James S. Welsh, Tom Oomen and Cristian R. Rojas)
  • January 3rd, 2023: Together with A. Cedeño, M. Coronel, R. Carvajal and J. C. Agüero, we organized a symposium on Identification, Control and Applications (in Spanish) at Universidad Técnica Federico Santa María in Chile.
  • December 12th, 2022- January 6th, 2023: I visited Juan Carlos Agüero's group at Universidad Técnica Federico Santa María in Chile, to work on filtering, smoothing and identification using Gaussian mixture models.
  • September 18-21st, 2022: I presented a poster at the 30th ERNSI Workshop in System Identification in Leuven, Belgium.
  • June 15th, 2022: I began working as a postdoctoral researcher at Eindhoven University of Technology under the guidance of Prof. dr. ir. Tom Oomen.
  • May 11th, 2022: The paper "Consistency Analysis and Bias Elimination of the Instrumental Variable Based State Variable Filter Method" by Siqi Pan, James Welsh, myself and Cristian Rojas, was accepted for publication as a Regular Paper in Automatica.
  • May 5th, 2022: I successfully defended my Ph.D. thesis, titled "Continuous-time system identification: Refined Instrumental Variables and Sampling Assumptions", which can be found here.
  • April 19-21st, 2022: I visited Tom Oomen's group at Eindhoven University of Technology in the Netherlands.
  • April 11th, 2022: My Ph.D. thesis "Continuous-time System Identification: Refined Instrumental Variables and Sampling Assumptions" can now be downloaded here.
  • March 22th, 2022: The paper "Refined instrumental variable methods for unstable continuous-time systems in closed-loop" by myself, Cristian Rojas, Siqi Pan and James Welsh, was accepted for publication as a Regular Paper in the International Journal of Control.
  • February 18th, 2022: The paper "Theoretical and practical aspects of the convergence of the SRIVC estimator for over-parameterized models" by myself, Cristian Rojas, Siqi Pan and James Welsh, was accepted for publication as a Regular Paper in Automatica.
  • July 27th, 2021: Two papers were accepted for publication at IEEE CDC 2021, Austin, Texas, USA.
  • June 22nd, 2021: The paper "Consistent identification of continuous-time systems under multisine input signal excitation" by myself, Cristian Rojas, Siqi Pan and James Welsh, was accepted for publication as a Regular Paper in Automatica.
  • March 22nd, 2021: The draft "Non-causal regularized least-squares for continuous-time system identification with band-limited input excitations" by myself, Cristian Rojas and Håkan Hjalmarsson, can now be found in arXiv here.
  • June 30th, 2020: The paper "Efficiency Analysis of the Simplified Refined Instrumental Variable Method for Continuous-time Systems" by Siqi Pan, James Welsh, myself and Cristian Rojas, was accepted for publication as a Regular Paper in Automatica.
  • June 4th, 2020: I successfully defended my Licentiate thesis, titled "Consistency and efficiency in continuous-time system identification", which can be found here.
  • May 6th, 2020: The video of my presentation at ICASSP of the paper "Finite sample deviation and variance bounds for first order autoregressive processes", can now be found here.
  • May 6th, 2020: The draft "Consistent identification of continuous-time systems under multisine input signal excitation" by myself, Cristian Rojas, Siqi Pan and James Welsh, can now be found in arXiv here.
  • March 4th, 2020: The paper "A Finite-Sample Deviation Bound for Stable Autoregressive Processes" by myself and Cristian Rojas, was accepted for poster presentation at the 2nd Conference on Learning for Dynamics and Control in Berkeley, USA, June 10-11, 2020.
  • February 27th, 2020: The paper "Enforcing stability through ellipsoidal inner approximations in the indirect approach for continuous-time system identification" by myself, James Welsh and Cristian Rojas, was accepted for presentation at the 21st IFAC World Congress in Berlin, Germany, July 12-17, 2020.
  • February 4th, 2020: The draft "Efficiency Analysis of the Simplified Refined Instrumental Variable Method for Continuous-time Systems" by Siqi Pan, James Welsh, myself and Cristian Rojas, can now be found in arXiv here.
  • January 24th, 2020: The paper "Finite sample deviation and variance bounds for first order autoregressive processes" by myself and Cristian Rojas, was accepted for presentation at a lecture session at ICASSP 2020.
  • December 18th, 2019: The draft "A Finite-Sample Deviation Bound for Stable Autoregressive Processes" by myself and Cristian Rojas, can now be found in Arxiv here.
  • December 6th, 2019: I presented the work "An asymptotically optimal indirect approach towards continuous-time system identification", in an internal seminar series in the University of Newcastle, NSW, Australia.
  • November 6th, 2019: The paper "Consistency Analysis of the Simplified Refined Instrumental Variable Method for Continuous-time Systems" by Siqi Pan, myself, James Welsh and Cristian Rojas, was accepted for publication as a Regular Paper in Automatica.
  • October 21st, 2019: The draft "Finite sample deviation and variance bounds for first order autoregressive processes" by myself and Cristian Rojas, can now be found in Arxiv here.
  • October 3rd, 2019: I was awarded the 'Esfuerzo es Progreso' award from UTFSM, Valparaíso, Chile, for the best Electronic Engineer student of UTFSM graduated in 2016.
  • October 1st, 2019: The draft "Consistency Analysis of the Simplified Refined Instrumental Variable Method for Continuous-time Systems" by Siqi Pan, myself, James Welsh and Cristian Rojas, can now be found in Arxiv here.
  • September 22-25th, 2019: I presented a poster in the 28th ERNSI Workshop in System Identification in Maastricht, Netherlands.
  • July 26th, 2019: I completed the first version of an Exercise Compendium of Linear Systems Analysis (written in Spanish).
  • July 1-5th, 2019: I attended the 2019 Summer School of High Dimensional Probability and Algorithms, held in Paris, France.
  • May 24th, 2019: The paper "On the existence of a stabilizing solution of Modified Algebraic Riccati Equations in terms of standard Algebraic Riccati Equations and Linear Matrix Inequalities", by Francisco Vargas and myself, was accepted for publication in the IEEE Control Systems Letters (L-CSS).
  • May 23rd, 2019: I received the Complex Dynamic Systems and Control (CDSC) Scholarship from the University of Newcastle, Australia, for visiting this university during November 2019.
  • May 10th, 2019: The paper "Mean square stabilization over SNR-constrained channels with colored and spatially correlated additive noises", by myself, Francisco Vargas and Jie Chen, was accepted for publication as a Technical Note in IEEE Transactions on Automatic Control.
  • May 3rd, 2019: I received a grant from The Ericsson Research Foundation to attend the 2019 Summer School of High Dimensional Probability and Algorithms, held in Paris, France, on July 1-5th.
  • December 17-19th, 2018: I presented the paper "An asymptotically optimal indirect approach towards continuous-time system identification", by myself, Cristian Rojas and James Welsh, in the 57th IEEE Conference on Decision and Control (CDC) in Miami Beach, FL, USA.
  • September 23-26th, 2018: I presented a poster in the 27th ERNSI Workshop in System Identification in Pembroke College, Cambridge, U.K.
  • July 13th, 2018: One paper was accepted for publication at IEEE CDC 2018, Miami Beach, FL, USA.
  • July 10-15th, 2018: I attended the 35th International Conference on Machine Learning (ICML) in Stockholm, Sweden.
  • July 9-11th, 2018: I presented the paper "A fully Bayesian approach to kernel-based regularization for impulse response estimation", by myself and Cristian Rojas, in the 18th IFAC Symposium on System Identification (SYSID) in Stockholm, Sweden. I also participated as a organizing crew member for the event.
  • June 19-20th, 2018: I presented the work "An asymptotically optimal indirect approach towards continuous-time system identification", by myself, Cristian Rojas and James Welsh, in the Swedish Control Conference (Reglermöte) at KTH, Stockholm, Sweden.
  • June 12-15th, 2018: I presented the paper "Stabilization of MIMO systems over additive correlated noise channels subject to multiple SNR-constraints", by myself, Francisco Vargas and Jie Chen, in the 16th annual European Control Conference (ECC) in Limassol, Cyprus.
  • April 6th, 2018: One paper was accepted for publication at SYSID 2018, Stockholm, Sweden.
  • February 8th, 2018: One paper was accepted for publication at ECC 2018, Limassol, Cyprus.
  • December 12-15th, 2017: My supervisor Cristian Rojas presented the paper "Optimal enforcement of causality in non-parametric transfer function estimation", by myself, Patricio Valenzuela, Cristian Rojas and Ricardo Rojas, in the 56th IEEE Conference on Decision and Control (CDC) in Melbourne, Australia.
  • October 9th, 2017: I started my Ph.D. studies in Royal Institute of Technology (KTH) in Stockholm, Sweden, supervised by Cristian Rojas.