Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: second-order digital filter

Sortuj według:

Ogranicz wyniki do:

Floating-point roundoff errors of second-order state-space digital filters.

Świder Z.

Systems Science

2000

Vol. 26, nr 1

67-81

An expression for the output roundoff error variance of second-order state-space digital filter implemented in floating-point arithmetic is derived. The expression is further specified to white-noise and constant inputs which are common in feedback systems. Numerical results are presented for four typical realizations, i.e., controller and observer canonical forms, balanced realization, and minimum-noise-gain filter. All possible realizations are examined by means of a parametric approach. It is demonstrated that a simple modal realization involving poles and residues of the filter transfer function generates error not much larger than that of the minimum-noise-gain realization.