Answers are grounded in this paper and cite their sources.
This paper deals with the fitting of a rational function to an experimentally determined frequency domain transfer function. Examples show that the use of overdetermined fitted systems improve the identification in noisy situations. A method is presented, enabling the determination of the number of zero/poles of the system, and the relation to the rank of the matrix used in a least square identification method.
No takes yet. Share an insight, caveat, or question.
Braun et al. (1987) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: