Frequency estimation of a damped sinusoidal signal and comparison to theoretical lower bound

Isaac Fan, Silvia Knappe-Grueneberg,Jens Voigt, Detlef Stollfuss,Allard Schnabel,Wolfgang Killian,Martin Burghoff,Lutz Trahms

2016 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM 2016)（2016）

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摘要

Precision measurement of the frequency for a damped sinusoidal signal is important for fundamental symmetry test at the low energy scale. Here we analyzed the signal blockwisely and develop a model that can predict a correct blocksize dependence of the experimental frequency sensitivity. In addition, the model shows a leveling-off of the ultimate frequency precision beyond 2 times the damping time constant.

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关键词

Free spin precession, Frequency estimation, Precision measurement, Time series regression, Cramer-Rao lower bounds, Fundamental symmetry, Electric dipole moment

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