Inter-satellite symmetrical transceiving bidirectional processing and communication integrated time-frequency transmission system

Abstract

The invention relates to an inter-satellite symmetrical transceiving bidirectional processing and communication integrated time frequency transmission system, which comprises an optical comb frequency synthesizer unit, an inter-satellite laser communication terminal and an inter-satellite time frequency transmission processing unit. According to the system, a symmetrical transceiving processing technology system is adopted, a laser terminal is multiplexed with a laser communication system, and a laser communication signal is used for time transfer; the laser carrier signal is used for frequency transmission, which can be multiplexed with an existing laser communication unit, so that deep fusion of high-precision time-frequency transmission and communication is realized. The method has a space engineering application prospect applied to a next-generation satellite navigation system and has a wide space application potential.

Description

technical field [0001] The invention relates to a time-frequency transfer system integrated with communication for bi-directional processing of inter-satellite symmetric sending and receiving, and belongs to the field of time-frequency transfer. Background technique [0002] The transmission of high-precision time and frequency is a necessary condition for the establishment and maintenance of coordinated universal time UTC, and it is also an essential technology for the establishment and maintenance of GNSS system time and high-precision time synchronization between system nodes. At the same time, with the development of optical time-frequency technology, the accuracy of atomic clocks has been continuously improved. The stability of the latest laboratory high-precision optical clocks has reached the E-18 level. The definition of the next generation of seconds is also based on the definition of optical clocks. Time-frequency transmission and comparison accuracy put forward hi...

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention is: Aiming at the problems of the traditional time-frequency transfer technology, such as large link attenuation, limited field of use, and inability to integrate with existing laser communication terminals in the current prior art, a A Time-Frequency Transfer System Integrated with Communication for Inter-Satellite Symmetric Transmit and Receive Bidirectional Processing

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