Analog implementation of fast min/max filtering

Author

Siskos, S. ; Vlassis, S. ; Pitas, I.

Author_Institution

Lab. of Electron., Aristotelian Univ. of Thessaloniki, Greece

Volume

45

Issue

7

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

913

Lastpage

918

Abstract

An analog implementation of running min/max filters based on current-mode techniques is presented. Switched-current delay cells and current/voltage two inputs min/max selectors are used either for current or voltage inputs respectively. The voltage two input min/max circuit is designed using current conveyors and a modified structure of this is used to implement the running min/max filter for window size n=8. Simulation results demonstrate the feasibility of the proposed implementation, which can be extended to a higher window size

Keywords

CMOS analogue integrated circuits; analogue processing circuits; current conveyors; nonlinear filters; switched current circuits; SI delay cells; analog implementation; current conveyors; current-mode techniques; current/voltage two inputs min/max selectors; fast min/max filtering; running min/max filters; switched-current delay cells; Analog integrated circuits; Circuit simulation; Delay; Digital filters; Filtering; Integrated circuit noise; Nonlinear filters; Signal processing; Statistics; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.700945

Filename

700945