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Dr. Chen is an Associate Professor in the ECEE Department, CU Boulder. His research interests are in control theory, stochastic processes, optimization, graph theory, and their applications in modeling, analysis, control, and estimation of complex systems. Dr. Chen is the recipient of the 2021 Donald P. Eckman Award, a recipient of the NSF CAREER Award, and an awardee of the AFOSR Young Investigator Program. A few research projects and relevant publications are provided below. For a full list of research work, please see the page of publications.

1. Ensemble Control and Estimation Theory:

X. Chen, Controllability Issues of Linear Ensemble Systems over Multi-dimensional Parameterization Spaces.

X. Chen, Sparse Linear Ensemble Systems and Structural Controllability.

X. Chen, Ensemble Observability of Bloch Equations with Unknown Population Density.

X. Chen, Structure theory for ensemble controllability, observability, and duality.

X. Chen, Controllability of Continuum Ensemble of Formation Systems over Directed Graphs.

2. Graphons and Random Graph Theory:

M.-A. Belabbas and X. Chen, Geometric Characterization of the H-property for Step-graphons.

M.-A. Belabbas, X. Chen, and T. Basar, On the H-property for step-graphons and edge polytopes.

3. Spacecraft Guidance:

E. Jenson, D. Scheeres, and X. Chen, Robust Spacecraft Guidance with Control-Dependent Noise: Analysis and Application.

E. Jenson, X. Chen, and D. Scheeres, Optimal Spacecraft Guidance with Asynchronous Measurements and Noisy Impulsive Controls.