Details

Autor(en) / Beteiligte

• Sanz-Gonzalez, J.L.
• Herranz-Tores, J.C.
• Calero-Perez, E.

Titel

Optimal structures for high speed and low roundoff noise digital filters

Ist Teil von

• [Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991, p.1897-1900 vol.3

Ort / Verlag

IEEE

Erscheinungsjahr

1991

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• The authors propose the optimization of the parallel and cascade connections of second-order sections, by selecting the best section for realizing each pair of complex-conjugate poles (and zeros). The optimization sense is, first, the minimization of the output roundoff noise and power and, second, the minimization of the number of operations. The optimal second-order state-space section is the realization for those poles close to z=1 (or -1) and the second-order direct section for poles far from z=+or-1. These results are almost independent of the filter transfer function. Experimental results with Butterworth, Chebyshev, and elliptic filters are given to support the theory.< >