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Quantum enhanced long-distance clock synchronization method and system

A clock synchronization, long-distance technology, applied in time division multiplexing systems, photon quantum communication, electrical components and other directions, can solve problems such as difficulty in implementation and the limitation of navigation clock synchronization accuracy, improve detection efficiency, and facilitate long-distance High-precision clock synchronization, the effect of increasing the feasible range

Pending Publication Date: 2022-07-29
AIR FORCE UNIV PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The synchronization accuracy of traditional navigation clocks is limited by the bandwidth of classic electromagnetic waves, and the upper limit of accuracy is nanoseconds. It is difficult to achieve higher-precision navigation activities both theoretically and technically.

Method used

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  • Quantum enhanced long-distance clock synchronization method and system
  • Quantum enhanced long-distance clock synchronization method and system
  • Quantum enhanced long-distance clock synchronization method and system

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Embodiment Construction

[0034] In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

[0035] like figure 1 As shown, the quantum enhanced remote clock synchronization system provided by the embodiment of the present invention specifically includes:

[0036] The cavity electro-optical converter 1 is used to generate a microwave-optical wave entanglement signal;

[0037] The microwave waveguide horn antenna ANT1 is used for the microwave signal in the generated microwave-light wave entangled signal radiate into free space;

[0038] Tunable fiber f...

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Abstract

The invention discloses a quantum-enhanced long-distance clock synchronization system, and the system comprises a cavity electric power converter 1 which is used for generating a microwave-light wave entanglement signal; the microwave waveguide horn antenna ANT1 is used for radiating a microwave signal in the generated microwave-light wave entangled signal to a free space; the adjustable optical fiber is used for retaining an optical signal in the generated microwave-optical wave entangled signal locally; the microwave waveguide horn antenna ANT3 is used for receiving microwave signals and reflecting the rest microwave signals, the cavity electro-optical force converter 2 is used for receiving the reflected microwave signals, and the phase conjugate processor is used for converting the reflected microwave signals into optical wave signals. And the sensor is used for realizing joint detection and time precision measurement of the optical signal and the optical wave signal, and outputting a real-time measurement result to the computer. According to the quantum enhanced clock synchronization technology provided by the invention, the precision of clock synchronization is improved by utilizing the non-classical characteristic of microwave-light wave entanglement.

Description

technical field [0001] The invention belongs to the quantum enhanced time synchronization technology, and particularly relates to a quantum enhanced remote clock synchronization method and system. Background technique [0002] Clock synchronization provides a unified time standard for parties working together on an activity under which their activities can be completed efficiently and accurately. Taking navigation activities as an example, time synchronization is especially important, because for fast-moving objects, the update rate of navigation data must match the speed of the moving object for effective navigation, and accurate matching of real-time navigation data must be based on the time synchronization of all parties. premise. The synchronization accuracy of traditional navigation clocks is limited by the bandwidth of classical electromagnetic wave signals, and the upper limit of accuracy is nanoseconds. It is difficult to achieve higher-precision navigation activiti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04B10/70
CPCH04J3/0644H04J3/0682H04B10/70
Inventor 吴德伟魏天丽苗强杨春燕任钊恒刘勇飞
Owner AIR FORCE UNIV PLA
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