Title :
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
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;
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
DOI :
10.1109/IDAACS.2009.5342932
