Title
On backward shift algorithm for estimating poles of systems.
Abstract
In this paper, we present an algorithm for estimating poles of linear time-invariant systems by using the backward shift operator. We prove that poles of rational functions, including zeros and multiplicities, are solutions to an algebraic equation which can be obtained by taking backward shift operator to the shifted Cauchy kernels in the unit disc case. The algorithm is accordingly developed for frequency-domain identification. We also prove the robustness of this algorithm. Some illustrative examples are presented to show the efficiency in systems with distinguished and multiple poles.
Year
DOI
Venue
2014
10.1016/j.automatica.2014.04.030
Automatica
Keywords
Field
DocType
Backward shift operator,Poles estimation,Rational orthogonal basis,Linear time-invariant systems,Identification methods
Mathematical optimization,Shift operator,Multiplicity (mathematics),Algorithm,Algebraic equation,Cauchy distribution,Robustness (computer science),Rational function,Mathematics
Journal
Volume
Issue
ISSN
50
6
0005-1098
Citations 
PageRank 
References 
3
0.42
9
Authors
2
Name
Order
Citations
PageRank
Wen Mi141.11
Qian Tao25914.00