Improved evaluation of initial condition for the multi-sine fitting algorithm

Author

Carnì, Domenico Luca ; Fedele, Giuseppe

Author_Institution

Dept. of Electron., Comput. & Syst. Sci., Univ. of Calabria, Rende, Italy

fYear

2009

fDate

21-23 Sept. 2009

Firstpage

492

Lastpage

495

Abstract

A problem in the multi-sine fitting algorithm (MSFA) based on four parameters sine fitting is the evaluation of the initial condition of the fundamental harmonic frequency, to ensure the convergence. The convergence is not assured for each value of the initial conditions. To overcame this problem, the improved evaluation of initial condition for the MSFA is presented. In particular, the problem is solved by the use of a method based on the algebraic derivative approach in the frequency domain. Numerical tests confirm the potentiality of the method and the advantages in term of higher accuracy for the dynamic tests, in comparison with others methods.

Keywords

algebra; analogue-digital conversion; circuit testing; algebraic derivative approach; convergence; dynamic tests; fundamental harmonic frequency; initial condition; multisine fitting algorithm; Amplitude estimation; Convergence; Discrete Fourier transforms; Frequency domain analysis; Frequency estimation; Parameter estimation; Phase estimation; Sampling methods; Signal processing algorithms; Testing; ADC testing; Multi-sine fitting; non uniformly sampling;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2009. IDAACS 2009. IEEE International Workshop on

Conference_Location

Rende

Print_ISBN

978-1-4244-4901-9

Electronic_ISBN

978-1-4244-4882-1

Type

conf

DOI

10.1109/IDAACS.2009.5342932

Filename

5342932