Dr. Don
New Heliman
Location: gainesville, fl USA
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| How do you get the uav to follow the flight path if you are using way points.
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A crude method is to navigate directly to each waypoint (close your control loop using your heading vector) and increment your waypoint when you get within a set distance.
A commonly used, more advanced method is to perform point-to-point waypoint navigation using "cross track error". What you do is use the coordinates of the segments of your path to calculate the equation of the line segment you are tracking. Using your current position and the equation of your line you can control your heading based on your direction to your waypoint and your cross track error (the perpendicular distance your UAV is from the path).
This technique also can be applied to continuous paths using splines but is significanly more involved.
| Quote |
| Do you have to have a GPS map of the area so that you know where the waypaths are?
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Paths coordinates can be preprogrammed using a previous survey or they can be chosen using a georeferenced image (ie. via google earth). |
