A method for digital filtering of a affected by noise signal and a control system for a vehicle

摘要

A method for digital filtering of a signal affected by noise, for filtering out of the noise component having the following steps:– Scanning of the signal with a sampling time (t_s),– Input of the sample values in an adaptive digital filter, wherein for the calculation of the filter coefficients of the adaptive digital filter to a memory is accessed, in which a number (k) of downstream sampling instants and sampling values are stored, wherein the stored sampling instants and sampling values for the calculation of each of the filter coefficients are used, wherein the number (k) and the sampling time (t_s) are so selected that the product of the number (k) and the sampling time (t_s) less than 1 / 4 of the period of the fundamental frequency of the signal is,– Calculation of a filtered signal value (q (n)) from the filter coefficients and the current sampling instant,– Output of a filtered signal value.