Position encoder for measuring a position containing a sensor 2, providing electrical signals representing the angular position, a measuring device for measuring the electrical signals and outputting at least one electrical position signal representing the angular position and signal processing means 3, processing the position signal, the signal processing means 3 exhibiting an adaptive filter comprising at least a speed estimator 5 outputting an estimated speed and connected in parallel a speed limiter 7 that depending from the estimated speed limits a change in the position signal.