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Can 'Place' command in matlab place the poles of A-BK in the same order as given in the input argument of place function?

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Shyam Mudiraj 2013-5-31

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I am trying to find K such that the poles of A-BK are elements of lets say a vector P. The problem is that when I use the 'place' command in matlab to get K for poles P, the poles of A-BK are not in the same order as in P. Is this usually the case with the 'place' command?

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Azzi Abdelmalek 2013-5-31

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The order of the pôles does not matter, if you want to get the same order you can use the sort function

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Shyam Mudiraj 2013-5-31

Unfortunately, in my application, the order does matter. Is there any way that we can make sure that the order is right?

Azzi Abdelmalek 2013-5-31

在 MATLAB Online 中打开

When you set your pôles, be sure that they are sorted, to get the pôles from A-BK Use

P1=sort(eig(A-B*K))

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