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前言我们知道用根轨迹法来研究系统是一种比较常用的方法。但是,当系统阶次高达三阶以上时,作根轨迹就会遇到一个难题:那就是找根轨迹的分离点或会合点。虽然现在可以用计算机来分析根轨迹,但是作为一般地分析系统还需要既简便又切实可行的办法。我们先讨论无延迟因子 e~(-rs)的情况,然后讨论有延迟因子 e~(-rs)的情况。
Preface We know that the root locus method to study the system is a more common method. However, when the system order is higher than third order, there is a problem with root locus: it is to find the root locus of the separation point or meeting point. Although it is now possible to analyze the root locus with a computer, there is a need for a simple and practical method of analyzing the system in general. Let us first discuss the case of delay-free ers (-rs), and then discuss the case of delayed-ers (-rs).