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Continuous wavelet transform of vibrational signals (scalogram)

Hello to everyone,

I am a beginner in signal processing and I'm trying to perform a CWT of a vibrational signal, took on a IC engine, in order to better understand the differences existing with the time-frequency rappresentation. I performed the scalogram, but i do not understand why on the time axis i read wrong informations, that is, there are wrong values on the time axis. Is there anyone that can help me?

Thanks to all.

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Message 1 of 3
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Hello Fish,

 

what do you mean with "wrong values" on the time axis?

 

Valerio

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Message 2 of 3
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Thanks for the answer,

I mean that i don't see the time values of the signal's time history.

Are they the traslation factors used to perform the CWT?

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