The clock model and its relationship with the Allan and related variances.
The clock errors are modeled by stochastic differential equations (SDE) and the relationships between the diffusion coefficients used in SDE and the Allan variance, a typical tool used to estimate clock noise, are derived. This relationship is fundamental when a mathematical clock model is used, for example in Kalman filter, noise estimation, and clock prediction activities.
Zucca
Cristina
C
Dip. di Matematica, Università di Torino, 10123 Torino, Italy.
Tavella
Patrizia
P