期刊
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY
卷 35, 期 4, 页码 1310-1329出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11424-021-0214-1
关键词
Backstepping; boundary control; coupled wave systems; exponential stabilization; spatially-varying coefficients
资金
- National Science Foundation of China [61473126]
- Fundamental Research Funds for the Central Universities
This paper investigates the stabilization of coupled wave systems with spatially-varying coefficients. The authors propose a state feedback controller using the backstepping method. They tackle the challenge of proving the existence and uniqueness of the solution to the complicated kernel equations. By verifying the kernel equations, obtaining the existence and uniqueness of the kernel matrices, and utilizing a Lyapunov function, the exponential stabilization of the closed-loop system is achieved. The effectiveness of the proposed controller is demonstrated through a numerical example.
This paper considers the stabilization of the coupled wave systems with spatially-varying coefficients. The authors design a state feedback controller by backstepping method. In contrast to the previous work in the literature, the kernel equations become more complicated and the main difficulty lies in proving the existence and uniqueness of the solution to the kernel equations. Firstly, using the backstepping approach, the authors verify the kernel equations, which is a system of coupled hyperbolic equations with spatially-varying coefficients. Then, the existence and uniqueness of the kernel matrices is obtained. Finally, the authors use a Lyapunov function to get the exponential stabilization of the closed-loop system. A numerical example is presented to illustrate the effectiveness of the proposed controller.
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