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Optical fiber time frequency transmission system and method by utilizing Manchester encoding

A technology of time-frequency transmission and time-frequency, which is applied in the direction of optical fiber transmission, transmission system, electromagnetic wave transmission system, etc., and can solve the problems that it is difficult to achieve large-capacity data transmission and time-frequency signal transmission at the same time

Active Publication Date: 2020-09-22
NAT TIME SERVICE CENT CHINESE ACAD OF SCI
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Problems solved by technology

With the progress of society and the improvement of living standards, people are not only satisfied with the high-precision transmission of time and frequency, but also put forward higher requirements for data capacity and immediacy of communication in the communication process; the existing optical fiber time-frequency transmission often can only transmit Time signal, it is difficult to achieve large-capacity data transmission and time-frequency signal transmission at the same time

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  • Optical fiber time frequency transmission system and method by utilizing Manchester encoding
  • Optical fiber time frequency transmission system and method by utilizing Manchester encoding
  • Optical fiber time frequency transmission system and method by utilizing Manchester encoding

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Embodiment Construction

[0085] In order to make the purpose, technical effects and technical solutions of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments It is a part of the embodiment of the present invention. Based on the disclosed embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall all fall within the protection scope of the present invention.

[0086] see figure 1 , an optical fiber time-frequency transmission system using Manchester encoding according to an embodiment of the present invention, comprising: two devices at a transmitting end and a receiving end, which transmit data through an optical fiber link; wherein, the transmitting end includes a time-frequency so...

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Abstract

The invention discloses an optical fiber time frequency transmission system and method by utilizing Manchester encoding. The system comprises a transmitting end, and the transmitting end comprises a time frequency source, an N frequency multiplier, a first TDC, a first encoder, a first laser, a first circulator, a first photoelectric detector and a first decoder. According to the invention, an optical fiber time frequency transmission technology with high precision and high stability is combined with a Manchester encoding mode which contains self-timing information, is easy to extract frequency signals from data, is easy to encode / decode and has high anti-interference capability; high-precision and high-reliability synchronous transmission of time, frequency and data can be realized on theoptical fiber.

Description

technical field [0001] The invention belongs to the technical field of time-frequency information, in particular to an optical fiber time-frequency transmission system and method using Manchester coding. Background technique [0002] With its many advantages of safety, reliability and stability, optical fiber time-frequency transmission technology has become one of the key supporting technologies in the fields of aerospace, high-speed communication, geodesy, precision metrology, deep space exploration, and gravitational wave detection. Optical fiber time-frequency transmission technology not only has high precision and high stability, but also has the advantages of rich communication resources and strong communication capabilities due to the use of ground optical fiber as the bearer network. With the progress of society and the improvement of living standards, people are not only satisfied with the high-precision transmission of time and frequency, but also put forward highe...

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Application Information

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IPC IPC(8): H04J3/06H04B10/25H04B10/50
CPCH04J3/0638H04B10/503
Inventor 陈法喜赵侃郭新兴刘涛
Owner NAT TIME SERVICE CENT CHINESE ACAD OF SCI
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