Ag. Place et Gh. Allen, GENERALIZED POLE SENSITIVITY ANALYSIS DUE TO PARAMETER PERTURBATION, IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 44(10), 1997, pp. 869-873
Recent research on pole sensitivity due to polynomial coefficient pert
urbation has significantly improved the understanding and accuracy of
estimating pole sensitivity, This brief presents an expression for the
sensitivity analysis of rational transfer functions with repeated and
localized poles, extending the existing expression for sensitivity du
e to simple poles. This analysis provides estimates for an important q
uestion relating to pole sensitivity: Given the polynomial coefficient
accuracy and pole locations, what is the resulting pole displacement?