Resampling a signal with respect to variable rotational speed (Angular Domain)

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atabak mostafavi
atabak mostafavi 2023-4-14
回答： atabak mostafavi 2023-4-19
Hello everyone.
I want to resample my vibration signal which has been sampled with constant rate (50 kHz) with respect to the variable shaft speed. I have the tachometer signal as well. The Order Tracking Toolbox of MATLAB only gives me the spectra but I need the resampled signal itself (signal in angular domain). Has anyone implemented code for this?
Thank you in advance.

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回答（2 个）

Image Analyst
Image Analyst 2023-4-15
编辑：Image Analyst 2023-4-15
What is the "Order Tracking Toolbox"? It doesn't seem to come up in a list of Mathworks products.
Did you try interp1 or spline?
See attached demos.
If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:
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atabak mostafavi
atabak mostafavi 2023-4-19
Hi @Image Analyst, Thank you for your answer,
see this linke for MATLAB Order Analysis. you can also select a specific order to be converted back to waveform but it is very computatinal costly and almost imposible for all the orders existing in one siganl. I have used spline it works but I need to down sample the signal due to some technichal issues so it is not quite what I want.

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