Title :
Synthesis of second-order digital filters with floating point arithmetic and maximum SNR
Author :
Zurawka, T. ; Lüder, E.
Author_Institution :
Inst. fuer Netzwerk- und Systemtheorie, Stuttgart Univ., Germany
Abstract :
A lower bound for the roundoff-noise in second-order floating point digital filters is derived. Two filter structures are presented which exhibit this lowest noise power and in addition also the largest signal-to-noise ratio. Any given filter can be transposed into the low-noise structures by a linear transformation. Two more structures are shown to possess almost the lowest noise power
Keywords :
computational complexity; digital arithmetic; digital filters; roundoff errors; filter structures; floating point arithmetic; floating point digital filters; linear transformation; low-noise structures; lower bound; lowest noise power; maximum SNR; noise power; roundoff-noise; second-order digital filters; signal-to-noise ratio; Convolution; Delay; Digital filters; Equations; Floating-point arithmetic; Network topology; Nonlinear filters; Signal to noise ratio; Transfer functions;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230404
