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.
JO - Metrology and Measurement Systems
L1 - http://journals.pan.pl/Content/107048/PDF/Journal10178-VolumeXVII+Issue2_10+paper.pdf
L2 - http://journals.pan.pl/Content/107048
IS - No 2
KW - sinewave parameter estimation
KW - amplitude and phase measurements
KW - seven parameter sine fit
KW - ellipse fit
KW - spectral sinc fit
ER -
A1 - Ramos, Pedro
A1 - Janeiro, Fernando
A1 - Radil, Tomáš
PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation
JF - Metrology and Measurement Systems
T1 - Comparative Analysis of Three Algorithms for Two-Channel Common Frequency Sinewave Parameter Estimation: Ellipse Fit, Seven Parameter Sine Fit and Spectral Sinc Fit
UR - http://journals.pan.pl/dlibra/docmetadata?id=107048
DOI - 10.2478/v10178-010-0022-8