Title :
Performance of a Digital Filter With Rom-Rounding
Author :
Mehra, S.K. ; Majithia, J.C.
Author_Institution :
Department of Electrical Engineering, University of Waterloo, Waterloo, Ontario, Canada.
Abstract :
In order to keep the word size of a digital filter fixed, a round-off procedure is usually adopted. This can result in errors in the filter output. In this paper several round-off techniques, including a novel method called ROM-rounding are applied in the implementation of a second-order low pass filter. Results indicate that ROM rounding is a viable and cost effective technique for use in filter implementations.
Keywords :
Adders; Arithmetic; Costs; Delay; Digital filters; Feedback; Frequency; Hardware; Low pass filters; Read only memory;
Journal_Title :
Industrial Electronics and Control Instrumentation, IEEE Transactions on
DOI :
10.1109/TIECI.1977.351488
