| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device for monitoring GPS/GNSS atomic clocks.SOLUTION: A typical method includes establishment of a measured difference between an atomic frequency standard (AFS) 114 and a monitoring device 116. The method also includes modeling of a difference model presumed between the AFS 114 and the monitoring device 116 and calculation of residual signals on the basis of the measured difference and the presumed difference model. In addition, the method includes analysis of the residual signals in a plurality of thresholds with a first detector 106. Each of the thresholds has a level of persistence in establishing the number of times the threshold was surpassed before at least one of phase jump, rate jump and acceleration error.SELECTED DRAWING: Figure 1 |
