주파수 영역에서 통과대역 오차 감소를 갖는 모델 저차수화

Model order reduction with pass band error reduction in frequency domain

This paper proposes the model order reduction with pass band error reduction in the frequency domain of discrete time linear systems. The algorithm is the new method of reduced order model which reduces passband error by changing controllability and observability gramian used with weighted functions. A numerical example shows that this algorithm has lower passband error than balanced w&l and weighted function characteristics in frequency domain.