The unstable zeros of a non minimum phase system are difficult problems for feedforward controller design.

非最小相位系统的不稳定零点给前馈控制器的设计带来了很大的困难.

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Simulation results indicate that an input square wave can be tracked precisely using this feedforward controller.

仿真结果表明,该前馈控制器可以精确跟踪方波输入信号.

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