Title :
Increased precision digital filter coefficients using digital dither
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester
fDate :
3/5/1998 12:00:00 AM
Abstract :
The DF1 (direct form 1) IIR filter structure is the most common structure employed in audio applications. The author explores the application of digital dither to increase the precision of filter coefficients allowing up to double precision performance to be achieved with single precision arithmetic. This realisation provides a versatile DF1 realisation suitable for many applications
Keywords :
IIR filters; digital arithmetic; digital filters; filtering theory; DF1 realisation; IIR filter structure; audio applications; digital dither; direct form 1 filter structure; double precision performance; precision digital filter coefficients; single precision arithmetic;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980362
