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Note on the root locus method |
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| Authors: | Xiao-lin Wu Li Xia Zhi-zhen Wang |
| Institution: | College of Mathematics and Sciences, Shanghai Normal University, Shanghai 200234, P. R. China |
| Abstract: | A new approach to the calculation of the points at which the root locus crosses the imaginary axis is proposed and the corresponding parameters are given. Further, this method to analyze polynomial convexity is used. Examples are given for illustration. It is shown that this approach is simple and useful to determine the Hurwitz stable polynomial. |
| Keywords: | singular frequency root locus stable polynomial convexity |
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