A sinewave fitting procedure for characterizing data acquisition channels in the presence of time base distortion and time jitter

A method is proposed to characterize the nonlinear behaviour of a data acquisition channel using a sinewave fitting procedure. Three error sources are considered: the nonlinear (dynamic) behaviour of the data acquisition channel (amplifiers, sample-and-hold, analog-digital-convertor), the time base distortion and the time jitter. Also the time base distortion and the jitter variance are estimated from the same experiment.