Method and apparatus for determining a sensor signal

The present invention relates to the provision of a sensor signal. Example Weis can for this purpose an envelope waveform of the signal of a rotary encoder to be reconstructed. For this purpose, a predetermined number of successive sampled values ​​of a signal is multiplied by a rotary encoder with the elements of a weighting vector. Based on such a weighted measurement vector thereupon an envelope waveform of a signal waveform can be determined by a rotary encoder and a phase angle can be calculated therefrom.