Tagged Questions

12
votes
1answer
3k views

What are the differences between a gyroscope, accelerometer and magnetometer?

What is the difference between a 3-axis gyroscope, 3-axis accelerometer and 3-axis magnetometer? How do these sensors work? Why are all 3 used in some devices like smartphones, tablets, quadcopters ...
0
votes
1answer
75 views

What is/are the minimum sensor(s) is needed to get inclination/tilt/pitch of project with roll compesation?

I am planning a project that will measure and log the tilt of my push bike while I am riding it. The fastest that I would be recording is every 0.1 seconds, though it will probably be every 1 second. ...
1
vote
1answer
934 views

Calculating weights in a particle filter experiment using multiple state variables

I am trying to implement a particle filter for coupling gyro and electronic compass for better measuring device orientation. [related question] I understand my state vector would contain the absolute ...
5
votes
2answers
189 views

Establishing ground truth in a particle filter experiment using compass and gyro

I'm working on coupling gyro and electronic compass for better accuracy of device orientation (using particle filters). I have one basic question, though: how do I establish ground truth in this case? ...