Sign-extension avoidance and word-length optimization by positive-offset representation for FIR filter design

• Main Authors: Huang, Ruimin, Chang, Chip-Hong, Faust, Mathias, Lotze, Niklas, Manoli, Yiannos
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits
• Online Access: https://hdl.handle.net/10356/96292; http://hdl.handle.net/10220/25594
• Institution: Nanyang Technological University

This brief proposes a new approach to utilizing positive-offset representation for sign-extension avoidance in shift-and-add implementation of a finite-impulse response filter. Affine arithmetic is used to model the excess offsets in order to curtail the word-length (WL) expansion problem. Tighter p...