Analog Filtering in Instrumentation Using Posicast

Autor:	José Simancas-García, Farid Meléndez-Pertuz, Jaime Vélez-Zapata
Rok vydání:	2019
Předmět:	General Computer Science Computer science Direct method Noise reduction Feed forward Filter (signal processing) 01 natural sciences Step response Analogue filter Control theory Distortion 0103 physical sciences Overshoot (signal) Electrical and Electronic Engineering 010306 general physics
Zdroj:	IEEE Latin America Transactions. 17:280-287
ISSN:	1548-0992
DOI:	10.1109/tla.2019.8863174
Popis:	Analog filters are essential in industrial environments for noise reduction. The filter approximation that presents the best performance in noise reduction is Tchebyshev. This approximation introduces distortions in pulsed signals due to overshoot. The analysis and design of analog filters using a Posicast element are presented. Posicast is a feedforward compensator that reduces overshoot in system response. The authors present a direct method to design analog filters using Posicast, which is based on knowledge of the step response overshoot and system’s damped time response period. Simulated results for two filters (Tchebyshev and Bessel) indicates that the new method reduces distortion in pulsed signals, without affecting its performance in frequency.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::40d033ac3c8f1569c1afc7f6cdb4279d https://doi.org/10.1109/tla.2019.8863174 Zobrazit plný text záznamu