“…Recent years, the control design for ODE-PDE cascaded system receives more and more attentions [6][7][8]. Backstepping method, developed by Krstic, is a powerful tool for the design of exponential stability control law for ODE-PDE cascaded systems, such as ODE-Schrödinger equations by Ren, Wang and Krstic [9], Tang and Xie's ODE-heat equations [10,11], and ODE-wave equations [12][13][14].…”