Accelerometer data processing, time drift and fft

1. How do you remove noise from accelerometer data?

How do you remove noise from accelerometer data?

You can start with a low-pass filter. Ask yourself what is the maximum frequency possible (it depends of where the accelerometer is) and filter out all frequencies above that. The cut-off frequency will be a few Hz. You will need a colleague with some signal processing background to help you implement the LP filter.