Title :
Roundoff noise in error-feedback state-space filters
Author_Institution :
Tampere University of Technology, Tampere, Finland
Abstract :
Error-feedback is an effective technique for reducing multiplier wordlengths in fixed-point recursive digital filter implementations. In this paper, a new roundoff noise formula for error-feedback state-space filters is derived and used in optimizations.
Keywords :
Constraint optimization; Digital filters; Dynamic range; Equations; Feedback; Narrowband; Noise reduction; Optimization methods; Quantization; Transfer functions;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '83.
DOI :
10.1109/ICASSP.1983.1172110
