How can I track the location of an object relative to a point?
I am trying to interface the control scheme for a helicopter into a 3D representation on a PC. I was just wondering the best method for tracking the real-world position of the helicopter.
I've considered remembering the starting position and tracking the movements/commands, but I don't know how accurate this would be as there are several influences and variables to consider.
Another idea - probably the easiest - is to put a GPS locator on the helicopter and transmit the coordinates to the computer. Unfortunately, for the precision and quantity I am wanting, it's a bit pricey.
The other idea is to use beacons and triangulate the position based on distances from the beacons, but I am not sure how to measure the distance to the beacons. Ideally, it will be within inches, but I could work with less precise measurements.
How can I reliably/semi-accurately judge the distance from the beacon? Any other ideas that might work better?