CLOCK SYNCHRONISATION METHOD AND DEVICE THEREFOR Russian patent published in 2017 - IPC G04C11/00 

FIELD: radio engineering and communication; radar and radio navigation.

SUBSTANCE: proposed method and device relate to communication engineering and radar and can be used for comparison of time scales spaced apart over long distances. Device which realises disclosed method of synchronising clocks, comprises a relay artificial earth satellite, first A and second B ground stations, each having time and frequency standard 1, unit 2 heterodynes: first 2.1, second 2.2 and third 23 heterodynes, multiplier 4, mixers 5, 13 and 24, first intermediate frequency amplifier 6, power amplifiers 7 and 12, duplexer 8, transceiving antenna 9, pseudorandom signal generator 3, clippers 10 and 15, buffer storage devices 11 and 16, correlators 17 and 26, controlled delay unit 18, multipliers 19 and 29, low-pass filter 20, extreme controller 21, microprocessor 22, second intermediate frequency amplifiers 14 and 25, threshold unit 27, switch 28, phase doubler 30, narrow-band filters 31 and 32, phase detector 33 and inverting amplifier 34.

EFFECT: engineering problem of invention is increasing noise immunity and accuracy of synchronising remote time scales by providing symmetry of frequencies f_H2 and f_H3 of second and third heterodynes relative to frequency f₂ of main receiving channel f_U2-f₂=f₂-f_H3=f_pr2.

2 cl, 4 dwg