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本文对数字控制器的各种连续设计方法进行了比较,指出了用零阶保持器法具有较好的结果。双线性变换法只有在采样周期较短的才有较好的结果,前向差分法在采样周期较短时,有可能出现不稳定。
In this paper, we compare various continuous design methods of digital controller and point out that zero-order holder method has better results. The bilinear transformation method has better results only when the sampling period is shorter, and the forward difference method may be unstable when the sampling period is short.