To control the oscillator strength and frequency of the oscillator, so as to reduce the accumulated time error on the clock

摘要

Including: (a) in the selected time, by determining a time reference signal lamp, the time error in the clock and the frequency difference between the reference oscillator and the reference oscillator are determined; (b) determining the change of time error and the frequency difference between different tests of the time reference line; and (c) adjusting the oscillator frequency to eliminate the cumulative time error between the second time reference line test and other selected tests. A. It has the characteristics of measuring the crystal temperature associated with the oscillator and adjusting its frequency according to the detected temperature;As a reference signal of time extracted from GPS satellite signals