We proved the closed systems global asymptotical stable,not needing the error upper bound and the error square integral, all the signals are bounded and the tracing error convergence.

• 在不要求最优逼近误差平方可积和上界已知的条件下,证明闭环系统全局渐近稳定,所有信号有界且跟踪误差收敛到零。