System and method of eliminating systematic noise in stimulus-response systems

摘要

A system and method of eliminating systematic noise in a stimulus-response system. A data acquisition time frame is triggered during which a desired response signal is acquired. The triggering initiates the systematic noise which is stored along with the desired response signal. A stimulus signal is provided to the stimulus-response system in order to induce the desired response signal. A variable delay is introduced between the triggering of the data acquisition time frame and the provision of the stimulus signal. Individual sets of response signals are acquired which respectively correspond to each introduced variable delay. The sets of acquired response signals are shifted so that the stimulus signals are equivalent in time with respect to each set of acquired response signals. The shifted sets of acquired response signals are summed in order to convolute in time the systematic noise.