constant_sinusoidal_offset

constant_sinusoidal_offset(y)

Get constant offset of sinusoidal signal.

This function finds 95 and 5 percentile y values and take an average of them. This method is robust to the dependency on sampling window, i.e. if we sample sinusoidal signal for 2/3 of its period, simple averaging may induce a drift towards positive or negative direction depending on the phase offset.

Parameters:

y (ndarray) – Array of y values.

Returns:

Offset value.

Return type:

float