Title : 
Comparison of round-off noise variances in several low round-off noise digital filter structures
         
        
        
            Author_Institution : 
Rockwell International, Anaheim, CA
         
        
        
        
        
        
        
            Abstract : 
This note presents round-off noise expressions for fixed-point digital filters realized in the error-feedback structure, and a comparison of the error-feedback structure with other low round-off noise digital filter structures in terms of output round-off noise variance.
         
        
            Keywords : 
Constraint optimization; Digital filters; Dynamic range; Equations; Feedback; Poles and zeros; Roundoff errors; Transfer functions;
         
        
        
            Journal_Title : 
Proceedings of the IEEE
         
        
        
        
        
            DOI : 
10.1109/PROC.1980.11600