Time-varying filtering in switching systems

In this article, we propose a novel concept of a continuous-time filter of constant component that exhibits a very short response in the time domain without significant distortions in the frequency domain. Such a designed filter is then applied in the system containing analog multiplexer, where it is able to reveal its advantageous properties. The paper analyses the sta- tionarity of solutions of a system with time-varying parameters, and presents the analysis of the time-varying filter of constant component both in the time domain and the frequency domain. Results verifying the effectiveness of the proposed approach are presented and compared to the traditional filters.