Hi all,
Just wondering if anyone knows of alternatives to getting position information without GPS? I have an indoor helicopter which I have autonomously hovering, but it starts to drift because of drafts or the IMU is not perfectly positioned (i.e. it's not exactly parallel to the ground). Double integrating accelerometer data is prone to error accumulation so that's not an option.
The only thing I can think of doing (excluding indoor GPS) is to point a camera down towards the ground and use some sort of visual odometry algorithm. If anyone else has any other ideas, I'd appreciate it.
If someone thinks visual odometry will work, I'd appreciate any advice on the fastest way to successful implementation.
Thanks in advance!
-weg22