Modified series and parallel adaptors that lead to reduced sensitivity in wave digital filters

Author

Eswaran, Chikannan ; Antoniou, Athanasios ; Ramana Rao, Y.V.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

16

Issue

2

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

47

Lastpage

52

Abstract

By replacing multipliers in conventional series and parallel adaptors by digital subnetworks comprising multipliers whose constants are as far as possible machine representable, modified series and parallel adaptors are obtained whose operation is less dependent on multiplier constants that are not machine representable. Conventional and modified adaptors are then used to design several digital filters and the effects of coefficient quantization are investigated. The results obtained show that wave digital filters implemented with the modified adaptors are significantly less sensitive than filters implemented with conventional adaptors.

Keywords

circuit CAD; multiport networks; sensitivity analysis; wave digital filters; 3-port adaptors; coefficient quantization; design; parallel adaptors; sensitivity; series adaptors; wave digital filters; Band-pass filters; Digital filters; Equations; Passband; Ports (Computers); Quantization (signal); Sensitivity;

fLanguage

English

Journal_Title

Electrical and Computer Engineering, Canadian Journal of

Publisher

ieee

ISSN

0840-8688

Type

jour

DOI

10.1109/CJECE.1991.6593291

Filename

6593291