Dynamic Reduction of Transients Duration in Delay-Equalized Chebyshev Filters

摘要

One of the important problems of signal processing in measurement systems is to design a continuous-time filter that provides both a constant delay over the desired frequency band and a selective magnitude response, and at the same time ensures the transient of the designed filter as short as possible. In this paper, we propose a new theoretical method for dynamic shortening of transients in compensated continuous-time filters. Using the compensated Chebyshev filter, we introduce time-varying parameters to its structure for the purpose of the minimization of the transient that was lengthened because of the compensation process. Results verifying the effectiveness of the proposed method are presented and compared to the traditional filters.