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- W2051408351 abstract "An estimation method is presented for signals described by linear differential equations whose coefficients are functions of the unknown parameters. Various types of identifiability are defined according to these functions. In the linear case, an estimation algorithm is derived directly from the identifiability conditions, by use of elementary rules of operational calculus. The main steps of the algorithm are first presented through an introductory example of a damped sinusoid estimation. Unlike the modified Prony's method (used as reference), the presented one (1) provides explicit closed-form expressions and (2) remains valid for linear differential equations with non-constant coefficients. These expressions depend only on iterated integrals of the observed signals. Some basic features of the method are analysed and, in particular, we show that a least squares interpretation can be attached to it. Application to the estimation of a chirp signal is also presented with numerical simulations." @default.
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- W2051408351 date "2009-01-01" @default.
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- W2051408351 title "Parameter estimation for signals described by differential equations" @default.
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- W2051408351 doi "https://doi.org/10.1080/00036810802555441" @default.
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