The first example that comes to mind would be a position controller for a robot which uses only wheel odometry to estimate the current position. The robot doesn’t actually measure its position (the control outcome), but rather estimates it from wheel travel by assuming some model of traction.
In that situation the robot is controlling estimated position, not real position. If the estimate is always accurate then the distinction will not matter, but if not, and especially if it accumulates a drift, it will.
The first example that comes to mind would be a position controller for a robot which uses only wheel odometry to estimate the current position. The robot doesn’t actually measure its position (the control outcome), but rather estimates it from wheel travel by assuming some model of traction.
In that situation the robot is controlling estimated position, not real position. If the estimate is always accurate then the distinction will not matter, but if not, and especially if it accumulates a drift, it will.