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Experimental estimate error of system synchronization with use combined signal of time-frequency synchronization

DOI 10.18127/j20700784-201812-13

Keywords:

K.A. Kulichkov – Design Engineer, JSC «SPE «Radiosvyaz» (Krasnoyarsk); Post-graduate Student, Siberian Federal University (Krasnoyarsk)
E-mail: kirill.kulichkov.92@mail.ru
N.S. Kulichkova – Design Engineer, JSC «SPE «Radiosvyaz» (Krasnoyarsk); Post-graduate Student, Siberian Federal University (Krasnoyarsk)
E-mail: natasha.kulichkova.93@mail.ru
K.N. Chepa – Design Engineer, JSC «SPE «Radiosvyaz» (Krasnoyarsk); Post-graduate Student, Siberian Federal University (Krasnoyarsk)
E-mail: kchepa1992@gmail.com
A.V. Grebennikov – Ph.D. (Eng.), Associate Professor, Head of the Basic Department «Radioelectronic Equipment of Information Systems», Siberian Federal University (Krasnoyarsk); Head of Sector, JSC «SPE «Radiosvyaz» (Krasnoyarsk)
E-mail: berg24@mail.ru


At the present stage of development, high-precision time-frequency synchronization is one of the popular applications global navigation satellite system (GNSS). The some applications require, along with high accuracy, to ensure trouble-free operation of the system time-frequency synchronization, including, in the presence of deliberate noise, and also taking into account possible failures of separate elements of the system. The solution of such tasks can be provide by the reservation of equipment system time-frequency syn-chronization, application highly stable quantum generators and use in the reception equipment GNSS multi-element antenna arrays, providing work in conditions noise.
In this way of implementation equipment the formation scale time (EFST) consisting of standards frequency and time and forms combined signal established in thermocouple, where supported constant temperature from error ±1 degree. Antenna system (AS) time-frequency synchronization and block admission computational in a special container, which can be ensure that there is no movement of carrier construction. Container AS posted at a distance from Container system life support with the aim of reduce influence reflections signals navigation space apparatuses of underlying surface and local subjects on the result of measurements.
In connection with a significant removal of measuring means from EFST and necessity implementation of system synchronization with multiple access, solution tasks synchronization is possible, only with use combined signal of time-frequency synchronization (CSTFS). In this article, presents the main advantages CSTFS, described way synchronization and calibration cable at use bi-directional broadcast signal synchronization. As well as in article presents experiment, confirmatory precision characteristics synchronization with use CSTFS, who showed, that the use of CSTFS allows synchronize with error standard deviation which the not exceeds 5 ps.

References:
  1. Grebennikov A.V., Kondrat'ev A.S., Sizasov S.V., Hazagarov Yu.G. Apparatura dlya kalibrovki i metrologicheskoj poverki istochnikov navigacionnyh signalov GNSS // Materialy II Mezhdunar. nauch.-tehnich. konf. «Navigacionnye sputnikovye sistemy, ih rol' i znachenie v zhizni sovremennogo cheloveka». 10–14 oktyabrya 2012 g., g. Zheleznogorsk.
  2. Kondrat'ev A.S., Bykov A.S., Grebennikov A.V., Hazagarov Yu.G., Sizasov S.V., Kudrevich A.P., Yachin A.V. Perspektivnye signaly vysokotochnoj sinhronizacii. // Materialy VII Mezhdunar. simpoziuma «Metrologiya vremeni i prostranstva», 17–19 sentyabrya 2014 g., g. Suzdal' Vladimirskoj oblasti. Mendeleevo: FGUP «VNIIFTRI».
June 24, 2020
May 29, 2020

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