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@article{Ninness1999TheFR, title={The fundamental role of general orthonormal bases in system identification}, author={Brett Ninness and H{\aa}kan Hjalmarsson and Fredrik Gustafsson}, journal={IEEE Trans. Automat. Contr.}, year={1999}, volume={44}, pages={1384-1406} }

- Published 1999 in IEEE Trans. Automat. Contr.
DOI:10.1109/9.774110

The purpose of this paper is threefold. Firstly, it is to establish t hat contrary to what might be expected, the accuracy of well known and frequently used asymptotic variance r esults can depend on choices of fixed poles or zeros in the model structure. Secondly, it is to d erive new variance expressions that can provide greatly improved accuracy while… CONTINUE READING

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