A method for controlling an apparatus comprising at least two sensors (12, 14), and an active device (30, 32) interfering with signals detectable by the at least two sensors (12, 14), wherein the active device (30, 32) comprises one or more rotatable components being rotatable about a rotational axis, and wherein the active device (30, 32) creates a periodic interference signal, the method comprising: - detecting, by means of the at least two sensors (12, 14), two corresponding signals (S1, S2), the signals (S1, S2) including burst signals from a signal source (4, 8, 10), - storing data indicative of the at least two detected signals (S1, S2) in a memory, characterised by the method further comprising: - comparing signal values determined based on the data indicative for the at least two detected signals (S1, S2) stored in the memory at three different points in time with one another to differentiate the signal values into a low signal value, an intermediate signal value and a high signal value, wherein the three different points in time comprise a first point in time at a first time offset before a current time, a second point in time at a second time offset before the current time and a third point in time at a third time offset before the current time, wherein the at least two sensors (12, 14) comprise a first sensor and a second sensor and the first time offset is the time of an integer number of the complete revolutions of the one or more rotatable components about the rotational axis, and the second time offset is the time to rotate a portion of the rotatable component from being closest to the first sensor to being closest to the second sensor, and the third time offset is equal to the first time offset plus the second time offset, wherein the compared signal values comprise a first signal value determined at the first point in time, a second signal value determined at the second point in time, and a third signal value determined at the third point in time, wherein the first signal value is determined using the first sensor the second signal value is determined using the second sensor, and the third signal value is determined using the second sensor, - subtracting the intermediate signal value from a current signal value detected by means of at least one of the at least two sensors (12, 14) to obtain at least one processed signal (S1', S2') and - controlling operation of the apparatus based on the processed signal (S1', S2'). - detecting, by means of the at least two sensors (12, 14), two corresponding signals (S1, S2), the signals (S1, S2) including burst signals from a signal source (4, 8, 10), - storing data indicative of the at least two detected signals (S1, S2) in a memory, - comparing signal values determined based on the data indicative for the at least two detected signals (S1, S2) stored in the memory at three different points in time with one another to differentiate the signal values into a low signal value, an intermediate signal value and a high signal value, wherein the three different points in time comprise a first point in time at a first time offset before a current time, a second point in time at a second time offset before the current time and a third point in time at a third time offset before the current time, wherein the at least two sensors (12, 14) comprise a first sensor and a second sensor and the first time offset is the time of an integer number of the complete revolutions of the one or more rotatable components about the rotational axis, and the second time offset is the time to rotate a portion of the rotatable component from being closest to the first sensor to being closest to the second sensor, and the third time offset is equal to the first time offset plus the second time offset, wherein the compared signal values comprise a first signal value determined at the first point in time, a second signal value determined at the second point in time, and a third signal value determined at the third point in time, wherein the first signal value is determined using the first sensor the second signal value is determined using the second sensor, and the third signal value is determined using the second sensor, wherein the three different points in time comprise a first point in time at a first time offset before a current time, a second point in time at a second time offset before the current time and a third point in time at a third time offset before the current time, wherein the at least two sensors (12, 14) comprise a first sensor and a second sensor and the first time offset is the time of an integer number of the complete revolutions of the one or more rotatable components about the rotational axis, and the second time offset is the time to rotate a portion of the rotatable component from being closest to the first sensor to being closest to the second sensor, and the third time offset is equal to the first time offset plus the second time offset, wherein the compared signal values comprise a first signal value determined at the first point in time, a second signal value determined at the second point in time, and a third signal value determined at the third point in time, wherein the first signal value is determined using the first sensor the second signal value is determined using the second sensor, and the third signal value is determined using the second sensor, - subtracting the intermediate signal value from a current signal value detected by means of at least one of the at least two sensors (12, 14) to obtain at least one processed signal (S1', S2') and - controlling operation of the apparatus based on the processed signal (S1', S2').