The generalized likelihood ratio test for detecting anomalous behaviors of atomic clocks

E. Nunzi; P. Carbone

doi:10.1117/12.731505

7 June 2007 The generalized likelihood ratio test for detecting anomalous behaviors of atomic clocks

E. Nunzi, P. Carbone

Proceedings Volume 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications; 660310 (2007) https://doi.org/10.1117/12.731505
Event: SPIE Fourth International Symposium on Fluctuations and Noise, 2007, Florence, Italy

Abstract

In this paper, the problem of detecting anomalies in the behavior of atomic clocks is addressed by means of statistical fault detection techniques. In particular, a method based on a generalized likely hood ratio test (GLRT), which allows the detection of a fault and the estimate of the time at which fault has occurred, is analyzed and characterized by means of both synthesized and experimental data obtained from a Rubidium frequency standards. The effectiveness of the method has been already compared with standard tools such as the Allan variance. In this paper, the characterization of the detection technique is deeply analyzed and information are used for designing a practical fault detection method for revealing atomic clock failures.

Citation Download Citation

E. Nunzi and P. Carbone "The generalized likelihood ratio test for detecting anomalous behaviors of atomic clocks", Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 660310 (7 June 2007); https://doi.org/10.1117/12.731505

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