Low-frequency differentiators and integrators for biomedical and seismic signals

Author

Al-Alaoui, MohamadAdnan

Author_Institution

Dept. of Electr. & Comput. Eng., American Univ. of Beirut, Lebanon

Volume

48

Issue

8

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

1006

Lastpage

1011

Abstract

A general active-network synthesis approach to inverse system design is introduced. The approach is applied to a passive RC differentiator and a passive RC integrator to obtain, respectively, a very low-frequency differential integrator and a very low-frequency differential differentiator. The frequency ranges of the proposed circuits, from dc to a few hundred hertz, are particularly suitable to the frequency ranges of biomedical and seismic signals. The advantages of the proposed circuits are delineated and include single time constants, dc stable integrators, and resistive input differentiators. Noninverting and inverting differentiators and integrators could be obtained by grounding one of the input terminals in the differential configurations

Keywords

RC circuits; active networks; differentiating circuits; integrating circuits; medical signal processing; seismology; signal processing equipment; active-network synthesis approach; biomedical signals; dc stable integrators; inverse system design; low-frequency differentiators; low-frequency integrators; passive RC differentiator; passive RC integrator; resistive input differentiators; seismic signals; single time constants; Circuit synthesis; Differential amplifiers; Filters; Frequency synthesizers; Grounding; Network synthesis; Operational amplifiers; Signal synthesis; Transfer functions; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.940191

Filename

940191