how to shift phase of unknown frequency signal by 90 by using hilbert transform?

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saleh shlimet
saleh shlimet 2020-6-6
评论： Vahila Kayithi 2020-6-16
I tried to shift an unknown frequency signal by 90 by applying hilbert transform comand (imag(hilbert(x)) in matlab function block. But it does not work.
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Vahila Kayithi
Vahila Kayithi 2020-6-16
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