Micro-wave bidirectional transmission device for multi-base-station time synchronization and time synchronizing method

Abstract

The invention relates to a micro-wave bidirectional transmission device for multi-base-station time synchronization. The micro-wave bidirectional transmission device comprises an atomic clock A, a clock generator A, a modulator A, an upper frequency converter A, a duplexer A, an antenna A, a lower frequency converter A, and a demodulator A; an atomic clock B, a clock generator B, a modulator B, an upper frequency converter B, a duplexer B, an antenna B, a lower frequency converter B and a demodulator B. The time information bidirectional transmission is adopted in the transmission device, so that the route delay is cancelled out, the time synchronization precision is improved, and the problem of time synchronization between the base station where the optical fiber link cannot be laid and the mobile base station is solved; the microwave bidirectional time transfer has broad frequency bandwidth, large volume, small natural interference and adjacent station interference and low error code rate; and furthermore, a narrow-beam directional antenna with high confidentiality can be adopted in the transmission device.

Description

technical field [0001] The invention relates to a microwave two-way transmission device, in particular to a microwave two-way transmission device and a time synchronization method for time synchronization of multiple base stations. Background technique [0002] Time synchronization and frequency synchronization are the two major synchronization problems of multistatic radar systems. How to make clock synchronization between different places is an urgent problem to be solved in multistatic radar systems. The so-called time synchronization means aligning the two clocks, or knowing exactly the clock difference between the two clocks, and compensating for the clock difference in subsequent processing. [0003] There are many methods for time synchronization, mainly the timing device of the central base station, which is composed of a frequency converter and a modem. Central base station timing means that the central reference station sends a time signal to the outstation, and t...

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Problems solved by technology

[0005] In order to avoid the above deficiencies in the prior art, the purpose of the present invention is to provide a microwave two-way transmission device for time synchronization between multiple base stations, to solve the problems of clock drift, time information delay, and expensive equipment caused by central base station timing atomic clocks. problems, and the inability to use optical fiber bidirectional transmission devices to achieve time synchronization between mobile base stations

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