2. Noise characterization in the frequency domain

The quantities defined in 1 are all explicitly time-dependent. We will now study them when expressed as a function of frequency. The transition from the time domain to the frequency domain generally involves performing the Fourier transform of the quantity under study. However, as we are mainly interested in random phenomena, the interest of such a method is limited, since the...

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Noise characterization in the frequency domain

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Noise models

References

(1) - RUTMAN (J.) - Characterization of phase and frequency instabilities in precision frequency sources: fifteen years of progress. - Proceedings of the IEEE, 66 (9), 1048-1075 (1978).
(2) - DE MARCHI (A.) - Techniques for improving the long term stability of commercial ceasium...