DocumentCode
1113043
Title
Required coefficient word length in floating-point and logarithmic digital filters
Author
Kalliojärvi, Kari ; Astola, Jaakko
Author_Institution
Signal Process. Lab., Tampere Univ. of Technol., Finland
Volume
1
Issue
3
fYear
1994
fDate
3/1/1994 12:00:00 AM
Firstpage
52
Lastpage
54
Abstract
The effects of coefficient quantization to the response of a digital filter are studied. Easy-to-use expressions for the required coefficient word length, with which the filter response deviations are within specified bounds, are derived for filters realized with floating-point or logarithmic arithmetic. The required coefficient word lengths of floating-point and fixed-point realizations of filters are compared with simulations.<>
Keywords
digital arithmetic; digital filters; filtering and prediction theory; coefficient quantization; coefficient word length; filter response deviations; floating-point digital filters; logarithmic digital filters; Digital filters; Digital signal processing; Floating-point arithmetic; Passband; Quantization; Random variables; Roundoff errors; White noise;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.295322
Filename
295322
Link To Document