Title :
Truncated-matrix multipliers with coefficient shifting
Author :
Walters, E. George, III ; Schulte, Michael J.
Author_Institution :
Penn State Erie, Behrend Coll., Erie, PA, USA
Abstract :
Truncated-matrix multipliers offer significant reductions in area, power, and delay, at the expense of increased computational error. These tradeoffs make them an attractive choice for many signal processing systems such as FIR filters. This paper presents a method for shifting coefficients that significantly reduces the error in systems that use truncated-matrix multipliers. This method allows further reductions in area, power, and delay while maintaining the overall accuracy of the system.
Keywords :
FIR filters; matrix algebra; signal processing; FIR filters; coefficient shifting; computational error; shifting coefficients; signal processing systems; significant reductions; truncated matrix multipliers; Computers; Delay; Digital signal processing; Finite impulse response filter; Frequency response; Signal to noise ratio;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2011 Conference Record of the Forty Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4673-0321-7
DOI :
10.1109/ACSSC.2011.6189979
