An outlook on the dynamic error "blind" correction for the time-varying measurement channel

Abstract

The paper presents the measuring system, which allows for correction of dynamic error caused by the analogue signal transducers, whose dynamic characteristics are changing with a rate approximate to the rate of change of the measured signal. Three methods for self-identification of the coefficients of the transducers' dynamics model, using exclusively the measured signal at the transducers' operating locations, are proposed. Analytical justification for the correctness of the proposed methods is presented for both: the special case of measuring periodic signals and for the general case when the measured signals are nonperiodic. The self-identification and correction procedures are performed as the algorithms processing the data collected from transducers.