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The relationship between real poles and real zeros in SISO sampled data systems

机译:SISO采样数据系统中实极与实零之间的关系

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摘要

A relationship between real poles and real zeros of SISO (single-input, single-output) sampled data systems is presented, which is independent of the sampling period. The relation is stated in terms of a parity property involving the number of real zeros between any two real poles. This property allows the investigation of conditions for the preservation of stable or unstable zeros under sampling. A sufficient condition for stability of a sampled system with a continuous-time plant having all real zeros, and a sufficient condition for instability of a two-sampled system with an unstable plant is developed.
机译:提出了SISO(单输入,单输出)采样数据系统的实极点与实零点之间的关系,该关系与采样周期无关。该关系是用奇偶性表示的,该奇偶性涉及任意两个实极之间的实零数。此属性允许调查在采样下保存稳定或不稳定零点的条件。开发了具有连续时间为全实数的工厂的采样系统的稳定性的充分条件,以及具有不稳定工厂的二采样系统的不稳定性的充分条件。

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