analyse aircraft vibration data

Hi I'm looking for any help available I am new to matlab, for a project I'm going to analyse aircraft vibration is this anything anyone has done before? I have 2 hours worth of data from a triaxual accelerometer stored in excel it was sampled at 100HZ. how do I display this data.

[Abdurrahim YASA]

Hi I am also working Aircraft Gas Turbine Vibration Raw Data, If you find something data like this, please share with me. Abdurrahim YASA [e-mail]

Answer 1

[Star Strider]

I’d plot it in the time domain and frequency domain. (See the documentation on the fft (link) function.)

The Fourier transform plot will also give you an idea of what frequencies constitute your signal, and what are noise. You can then reduce the noise in your signal with a frequency-selective filter. Those will likely be either lowpass, if you want to retain the d-c or constant offset, or bandpass if you want to eliminate the d-c offset. This is relatively easy to do with the Signal Processing Toolbox.