А.S. Tolstikov - Dr.Sc. (Eng.), Head of the Time and Frequency Service, SNIIM Siberian Research Institute of Metrology, Novosibirsk. E-mail: tolstikov@mail.ksn.ru А.А. Karaush - Research Scientist, SNIIM Siberian Research Institute of Metrology, Novosibirsk. E-mail: karaush.a@mail.ru Е.А. Khanikova - Research Scientist, SNIIM Siberian Research Institute of Metrology, Novosibirsk. E-mail: hanikovak@mail.ru А.R. Bezrodnykh - Post-graduate Student, Department of «Metrology and Optical Instrument Engineering», SNIIM Siberian Research Institute of Metrology, Novosibirsk. E-mail: a.bezrodnykh@mail.ru

The basis of the solution of various problems of coordinate-time determinations based on satellite navigation technologies based on the results of measurements of geometric distances from satellite navigation to the consumer. Measurements of these geometric distances are reduced for measurements of time intervals required for the navigation signal from the transmitting antenna to the receiving antenna of the satellite user equipment. An important condition for the accuracy and reliability of measurements of these intervals are stable generators of hours involved in the test, and the consistency of the moments of time scales, which are measured by measuring time intervals. Fulfillment of these conditions requires the use of measurements of highly hours, solving the problem of identifying the characteristics of the current instability in hours and hours of departures prediction on the basis of adequate mathematical models of instability; as well as solving the problem of synchronization of all the hours involved in the measurements. In this paper we present the results of evaluating the characteristics of instability onboard time scale orbital groupings GLONASS and GPS-based phase trajectory measurements performed in the conditions of use of standard time and frequency VET 1-19 «SNIIM». We study the error of representation onboard time scales using analytical scales, calculated on the basis of on-board time-frequency corrections.

 

1. Tolstikov A.S., Karaush A.A., Bezrodnykh A.R., KHanykova E.A. Ispolzovanie psevdodalnomernykh fazovykh izmerenijj dlja sravnenija shkal vremeni prostranstvenno-raznesjonnykh chasov // Sovremennye problemy radioehlektroniki: sb. nauch. tr. Krasnojarsk: Sib. feder. un-t. 2014. S. 259-263.