Integration of acceleration data

Hello everyone,

I have an acceleration data i collected using an accelerometer. I want to integrate this acceleration data twice to get position.

I found out about the problem of acceleration drift and the initial conditions associated with accelerometers.

I tried using the 'cumtrapz','trapz' commands, then tried using the FFT filtering before integration and after but the waveform still shows sign of poor integration or I could say, the drift still persist. and i checked other responses made here but they do not seem to help.

Does anyone know a way of integrating accelerometer data that could be of help.

Thanks in advance.

Answer 1

[Mahesh]

You can try Removing the mean and trend from the signal. x=x-mean(x); x=detrend(x);

for integration you can use either cumsum or cumtrapz but problem with this function is they induce some frequency in your original signal .

you can validate this function by taking simple sine signal