Dr. Xiang XU received the Bachelor of Engineering degree from Nanjing University of Science and Technology, China in 2014 and the Ph.D. degree from City University of Hong Kong, Hong Kong in 2018. From 2018 to 2021, he was a postdoctoral fellow in the Department of Biomedical Engineering, City University of Hong Kong. He is now an associate professor in the Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen, China. His research interests include Time delayed systems, cooperative control, infinite delayed systems, nonlinear systems and control, control of partial differential equations (PDEs). He has published overall 13 first-authored SCI papers, 10 of which were published on TAC and Automatica, also including 4 regular papers. He has helped his Ph.D supervisor in supervising four Ph.D students. All of them has published papers on top control journals, two of which have been employed as assistant professors in other universities. Dr. XU was awarded the National Science Fund for Excellent Young Scholars (Overseas) in 2022.

Education

2014.9-2018.8 Ph.D student, Mechanical and Biomedical Engineering, City University of Hong Kong

2010.9-2014.7 B.S. in Automation, Qian Xuesen College, Nanjing University of Science and Technology

Working Experiences

2022.12-now Associate professor, Department of Electronic and Electric Engineering,

Southern University of Science and Technology

2022.6-2022.12 Visiting associate professor, Department of Electronic and Electric Engineering,

Southern University of Science and Technology

2018.9-2021.10 Postdoctoral fellow, Department of Biomedical Engineering, City University of Hong Kong

Research Introduction

Time delayed systems, cooperative control, infinite delayed systems, nonlinear systems and control, control of partial differential equations (PDEs).

Papers

1. X.Xu, L. Liu*, M. Krstic, and G. Feng, “Stabilization of chains of PDE–ODE cascades”, Automatica, vol.148, Article 110763, 2023.

2. X.Xu, L. Liu*, M. Krstic, and G. Feng, “Low-gain compensation for PDE-ODE cascade systems with distributed diffusion and counter-convection”, IEEE Transactions on Automatic Control, early access, doi:10.1109/ TAC.2022.3170371.

3. X.Xu, L. Liu, and G. Feng*, “Lyapunov characterizations on input-to-state of infinite-delayed systems”, Automatica, vol. 146, Article 110585, 2022. (Regular Paper)

4. X.Xu, L. Liu*, M. Krstic, and G. Feng, “Stability analysis and predictor feedback control for systems with unbounded delays”, Automatica, vol.135, Article 109958, 2022. (Regular Paper)

5. X.Xu, L. Liu*, M. Krstic, and G. Feng, “Predictor feedback and integrator backstepping of linear systems with distributed unbounded delays”, International Journal of Robust and Nonlinear Control, vol.32, no.6, pp. 3281-3291, 2022. (Special issue in honor of Prof. Vladimir Kharitonov’s 70th birthday)

6. X.Xu, L. Liu, and G. Feng*, “On Lipschitz conditions of infinite dimensional systems,” Automatica, vol.117, p. 108947, 2020.

7. X.Xu, L. Liu, and G. Feng*, “Stability and stabilization of infinite delayed systems: A Lyapunov based Method,” IEEE Transactions on Automatic Control, vol. 65, pp.4509-4524, 2020. (Full Paper)

8. X.Xu, L. Liu, and G. Feng*, “Consensus of linear multi-agent systems with distributed infinite transmission delays: A low gain method,” IEEE Transactions on Automatic Control, vol.65, pp.809-816, 2020.

9. X.Xu, L. Liu, and G. Feng*, “Semi-global stabilization of linear systems with distributed infinite input delays and actuator saturations,” Automatica, vol.107, pp.398-405, 2019.

10. X.Xu, L. Liu, and G. Feng*(invited), “Consensus of single integrator multi-agent systems with unbounded transmission delays,” Journal of System Science and Complexity, vol. 32, no.3, pp. 778-788, 2019.

11. X.Xu, L. Liu, and G. Feng*, “Stabilization of linear systems with distributed infinite input delays: A low gain approach,” Automatica, vol. 94, pp. 396–408, 2018. (Regular Paper)

12. X.Xu, L. Liu, and G. Feng*, “Consensus of discrete-time linear multiagent systems with communication, input and output delays,” IEEE Transactions on Automatic Control, vol. 63, no.2, pp. 492-497, 2018.

13. X.Xu, L. Liu, and G. Feng*, “Consensus of heterogeneous linear multiagent systems with communication time-delays,” IEEE Transactions on Cybernetics, vol. 47, no.8, pp. 1820-1829, 2017.

1.  Y. Guo, X. Xu, L. Liu, Y. Wang* and G. Feng, “Stabilization of discrete-time linear systems with infinite distributed input delays”, Automatica, accepted.

2. Q.Zhou, X. Xu, L. Liu, and G. Feng*, “A Lyapunov approach to robust cooperative output regulation of multiagent systems under infinite communication delays”, IEEE Transactions on Automatic Control, accepted.

3. C.Bi, X. Xu, L. Liu and G. Feng*, “Formation-containment tracking for heterogeneous linear multi-agent systems under unbounded distributed transmission delays”, IEEE Transactions on Control of Network Systems, accepted.

4. S.Luo, X. Xu, L. Liu, and G. Feng*, “Leader-following consensus of heterogeneous linear multiagent systems with communication time-delays via adaptive distributed observers”, IEEE Transactions on Cybernetics, early access, doi:10.1109/TCYB.2021.3115124.

5. Y.Guo, X. Xu, L. Liu, Y. Wang and G. Feng*, “New results on stability and stabilization of discrete-time systems with infinite delays”, Automatica, vol. 136, 110043, 2022.

6.C.Bi, X. Xu, L. Liu and G. Feng*, “Robust cooperative output regulation of heterogeneous uncertain linear multi-agent systems with unbounded distributed transmission delays”, IEEE Transactions on Automatic Control, vol.67, no.3, pp. 1371-1383, 2022. (Full Paper)

7. Q.Zhou, X. Xu, L. Liu, and G. Feng*, “Output feedback stabilization of linear systems with infinite distributed input and output delays”, Information Science, vol. 576, pp. 54-67, 2021.

8. C.Bi, X. Xu, L. Liu and G. Feng*, “Output containment control of heterogeneous linear multi-agent systems with unbounded distributed transmission delays”, IEEE Transactions on Cybernetics, early access, doi:10.1109/ TCYB.2021.3050177.

9. S.Luo, X. Xu, L. Liu, and G. Feng*, “Output consensus of heterogeneous linear multi-agent systems with communication, input and output time-delays,” Journal of Franklin Institute, vol. 357, pp. 12825-12839, 2020.

10. X.Yu, X. Xu, L. Liu*, and G. Feng, “Circular formation of networked dynamic unicycles by a distributed dynamic control law,” Automatica, vol. 85, pp. 1-7, 2018.