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matlabaccelerometerbutterworth
Aashish Shah
Aashish Shah

Reputation: 23

Displacement from accelerometer data with filtering

I have acceleration data from few accelerometer sensors. I am interested in the displacement so, I double integrate it (cumtrapz in matlab). The acceleration data is really noisy so, I use Butterworth filter to filter out the low frequency noises. After the first integration, I get the velocity and then filter this velocity to further integrate to get displacement. Everything works just fine. The only issue I have is that after filtering I lose the actual value of the acceleration and thus the value of the displacement I get does not make any sense.

Any suggestions?

Upvotes: 0

Views: 649

Answers (1)

Elijah
Elijah

Reputation: 1

I had this issue with using higher order butterworth Filters and was able to solve it by experimenting with different cut off frequencies.

Upvotes: 0

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