Remote calibration system for precision oscillator by common-view measurement of satellite time

摘要

This invention relates to a remote calibration system with high accuracy oscillator by the satellite-time simultaneous reception. For this purpose, (1-i) standard device (28) for outputting the standard time (t1); (1-ii) GPS satellites 10 of claim 1 GPS receiver for receiving the satellite time (tg) from (21); (1-iii) a standard time (t1) and the satellite time (tg) the difference between a first calculation means for calculating; And (1-iv) storing the calculation result of the first calculation means and data communication means is possible through the computer network 22 which consists of the reference device (20); (2-i) a predetermined time (t2) for outputting to be calibrated oscillator (34); (2-ii) GPS satellites 10 of claim 2 GPS receiver for receiving the satellite time (tg) from (31); (2-iii) the time (t2) and the satellite time (tg) second calculating means for calculating the difference between; And (2-iv) storing the calculation result of the second calculation means, and data communication is possible over the network computer unit (32) with at least one comparison device is configured (30); And (3) a third calculation means for subtracting the calculation result of the second calculation means calculates the time difference (t1-t2) from the calculation result of the first calculation means; there is provided a