TY - JOUR
N2 - In this paper, a comparison analysis of three different algorithms for the estimation of sine signal parameters in two-channel common frequency situations is presented. The relevance of this situation is clearly understood in multiple applications where the algorithms have been applied. They include impedance measurements, eddy currents testing, laser anemometry and radio receiver testing for example. The three algorithms belong to different categories because they are based on different approaches. The ellipse fit algorithm is a parametric fit based on the XY plot of the samples of both signals. The seven parameter sine fit algorithm is a least-squares algorithm based on the time domain fitting of a single tone sinewave model to the acquired samples. The spectral sinc fit performs a fitting in the frequency domain of the exact model of an acquired sinewave on the acquired spectrum. Multiple simulation situations and real measurements are included in the comparison to demonstrate the weaknesses and strong points of each algorithm.
L1 - http://rhis.czasopisma.pan.pl/Content/107048/PDF/Journal10178-VolumeXVII%20Issue2_10%20paper.pdf
L2 - http://rhis.czasopisma.pan.pl/Content/107048
PY - 2010
IS - No 2
DO - 10.2478/v10178-010-0022-8
KW - sinewave parameter estimation
KW - amplitude and phase measurements
KW - seven parameter sine fit
KW - ellipse fit
KW - spectral sinc fit
A1 - Ramos, Pedro
A1 - Janeiro, Fernando
A1 - Radil, Tomáš
PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation
T1 - Comparative Analysis of Three Algorithms for Two-Channel Common Frequency Sinewave Parameter Estimation: Ellipse Fit, Seven Parameter Sine Fit and Spectral Sinc Fit
DA - 2010
UR - http://rhis.czasopisma.pan.pl/dlibra/publication/edition/107048
T2 - Metrology and Measurement Systems
ER -