Frequently Asked Question

The gyroscope gives us the rate of change of the angular position over time (angular velocity) with a unit of [deg./s]. This means that we get the derivative of the angular position over time.

To obtain the angular position, we can simply integrate the angular velocity. So, assuming that at t=0 theta=0, we can find the angular position at any given moment t with the following equation:

The gyroscope drift is mainly due to the integration of two components: 

• a slow changing, near-dc variable called bias instability 
• a higher frequency noise variable called angular random walk (ARW)

source: https://www.analog.com/media/en/analog-dialogue/raqs/raq-issue-139.pdf