A transceiver and optical time-frequency transmission device

A transceiver, laser transceiver technology, applied in electromagnetic transceivers, transmission systems, electromagnetic transmitters and other directions, can solve problems such as lack of flexibility
CN111010235BActive Publication Date: 2021-07-06BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
Publication Date
2021-07-06

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Abstract

The solution provides a transceiver and an optical time-frequency transfer device, wherein the transceiver includes: a modem, which generates a FlexBOC modulation signal based on a flexibly configured offset binary carrier FlexBOC modulation strategy; and / or, based on a FlexBOC demodulation strategy , demodulate the photoelectric signal to obtain time-frequency data; the laser transceiver unit transmits the laser signal generated based on the FlexBOC modulation signal; and / or converts the received external laser signal into an electrical signal. The technical solution described in this application adopts flexibly configured offset binary carrier (FlexBOC) modulation and demodulation technology, which can not only overcome the multipath interference factors in radio time-frequency transmission technology, but also realize picosecond-level free-space optical two-way precision time-frequency transmission , and can effectively reduce the occupied bandwidth and greatly reduce the bandwidth requirement.
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Description

technical field

[0001] The present application relates to the field of optical time-frequency transmission, in particular to a transceiver and a free-space picosecond-level optical time-frequency transmission device. Background technique

[0002] In recent years, positioning, navigation and timing capabilities and technologies have promoted the rapid development of many fields such as people's livelihood activities, finance and trade, traffic management, power dispatching, and logistics. Among these technologies, timing services provide a solid foundation for the others. In recent years, the performance of optical atomic clocks has continuously improved and achieved unprecedented stability and precision, far exceeding the needs of the above applications. Therefore, the time-frequency transmission technology has become the bottleneck for improving the time service capability.

[0003] The time-frequency transfer technology using microwave radio means is becoming more and mo...

Claims

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