Dynamic high-precision time synchronization device and synchronization method thereof

Abstract

The invention belongs to the technical field of time frequency, and discloses a dynamic high-precision time synchronization device and a synchronization method thereof. The time synchronization devicecomprises a time difference real-time measurement module, a time difference calculation module, a time frequency regulation and control module, a frequency distribution module, a pulse distribution module and a control module. The time difference real-time measurement module accurately measures the time difference between the local time and the reference time in real time; the time difference calculation module realizes precise time tracing of the navigation system through a real-time time difference calculation technology; the core control module is used for calculating time difference datain real time according to the real-time measurement time difference and obtaining a time error and a frequency deviation of the time synchronization device; the time-frequency regulation and control module is used for precisely regulating the phase of a time signal and the frequency of a frequency signal output by the time synchronization device to realize real-time dynamic time synchronization, and finally, the frequency distribution module and the pulse distribution module are used for providing a high-precision time signal pulse per second and a high-precision frequency signal for externalequipment.

Description

technical field [0001] The invention belongs to the technical field of time and frequency, and more specifically relates to a dynamic high-precision time synchronization device and a synchronization method thereof. Background technique [0002] High-precision time synchronization equipment is widely used in scientific research and engineering applications, such as high-energy physics, astronomical observation, finance (stock trading), 5G mobile communications, high-speed railways (high-speed rail, maglev trains), big data processing (area chain), smart Transportation (unmanned driving), radar networking and other fields require a unified high-precision standard time. [0003] At present, the synchronization accuracy of traditional real-time dynamic time synchronization equipment based on navigation systems is affected by link transmission delay changes, satellite clock frequency drift, and receiver internal delay changes. The time synchronization method requires the use of ...

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Problems solved by technology

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a dynamic high-precision time synchronization device and its synchronization method, aiming to solve the problems of low synchronization accuracy and the inability to achieve time synchronization under dynamic conditions in the prior art

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