Title :
Extension facilities and performance of an LSI adaptive filter
Author :
South, C.R. ; Lewis, A.V.
Author_Institution :
British Telecommunications Research Laboratories, Ipswich, United Kingdom
Abstract :
An integrated modular solution for an audio band digital adaptive filter has been designed in LSI technology, which combines independent 240 tap adaptive and programmable FIR filters with coefficient interchange, based on a distributed normalisation architecture. Up to four filter units can be cascaded with optimum performance. Four step-sizes are provided internally with optional further external reduction for application to noisy channels.
Keywords :
Adaptive filters; Equations; Finite impulse response filter; Integrated circuit noise; Laboratories; Large scale integration; Noise reduction; Oral communication; Quantization; Telephony;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '84.
DOI :
10.1109/ICASSP.1984.1172435
