ADAPTIEVE DIGITALISATORSCHAKELING.

摘要

An adaptive digitizer circuit for an information processing system includes an entropy filter responsive to an information signal V having a variable noise sigma V that is a function of V, for providing a transform signal T, having a constant transform noise level sigma T throughout its dynamic range; and an analog to digital converter in which the ratio sigma T/ delta T of the noise level sigma T of the transformed signal and the digitization interval delta T is constant throughout the dynamic range of T.