A COMPARISON OF ROUNDOFF NOISE IN FLOATING POINT AND FIXED POINT DIGITAL FILTER REALIZATIONS

被引：33

作者：

WEINSTEIN, C

OPPENHEIM, AV

机构：

[1] M.I.T. Lincoln Lab., Lexington

来源：

PROCEEDINGS OF THE IEEE | 1969年 / 57卷 / 06期

关键词：

D O I：

10.1109/PROC.1969.7178

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A statistical model for roundoff noise in floating point digital filters proposed by Kaneko and Liu, is tested experimentally for first and second-order digital filters. Good agreement between theory and experiment is obtained. The model is used to specify a comparison between floating point and fixed point digital filter realizations on the basis of their output noise-to-signal ratio, and curves representing this comparison are presented. One can find values of the filter parameters at which the fixed and the floating point curves will cross for equal total register lengths. Copyright © 1969 by The Inshtute of Electrical and Electronics Engineers Inc.

引用

页码：1181 / +

页数：1