Anti-oscillation corrector, especially for filters

摘要

The corrector aims in particular to eliminate parasitic oscillations in a signal to be corrected leaving a filter. It comprises a differentiator/phase-shifter 2 providing the first derivative DSE of a signal SE to be corrected and a discriminator stage 3 for obtaining, from the first derivative, a correction signal OSC comprising solely the oscillations to be eliminated from the signal to be corrected. The first derivative signal is phase-shifted in the differentiator/phase-shifter stage so as to put the oscillations of the correction signal and the oscillations of the signal to be corrected into phase. The correction signal is substrated from the signal to be corrected in a subtracter stage 4 delivering a corrected signal SC analogous to the signal to be corrected in which the oscillations are substantially attenuated. <IMAGE>