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Navigation and distance measurement system on basis of quantum entanglement light and method for implementing navigation and distance measurement system

A technology of quantum entanglement and distance measurement system, which is applied in radio wave measurement system, measurement device, utilization of re-radiation, etc., can solve problems that need to be further improved, and achieve the effect of high-precision distance measurement

Inactive Publication Date: 2014-03-26
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, the measurement accuracy and measurable distance of the quantum entanglement source ranging experimental scheme in the prior art still need to be further improved

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  • Navigation and distance measurement system on basis of quantum entanglement light and method for implementing navigation and distance measurement system
  • Navigation and distance measurement system on basis of quantum entanglement light and method for implementing navigation and distance measurement system
  • Navigation and distance measurement system on basis of quantum entanglement light and method for implementing navigation and distance measurement system

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Embodiment Construction

[0029] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation methods and processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0030] ginseng Figure 1 to Figure 3 As shown, in this embodiment, the quantum entanglement navigation ranging system includes a quantum entanglement light source module, a single photon detector, a data acquisition module and a data processing module, wherein the system can be divided into an optical path part and a detection part, wherein the optical path part mainly consists of lasers, periodically polarized KT i OPO 4(PPKTP) crystal, polarization beam splitter, filter, quarter-wave plate, half-wave plate, photon coupler, long-distance optical fiber; the circuit part is mainly composed of single-ph...

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Abstract

The invention provides a navigation and distance measurement system on the basis of quantum entanglement light. The navigation and distance measurement system comprises a quantum entanglement light source module, single-photon detectors, a data acquisition module and a data processing module. The quantum entanglement light source module is used for generating entanglement double-photon pairs, the entanglement double-photon pairs are respectively fed into a test light path and a reference light path, and the data acquisition module is used for respectively acquiring time-domain count pulses generated by the single-photon detectors in the test light path and the reference light path and respectively recording arrival time of the time-domain count pulses generated by the single-photon detectors in the test light path and the reference light path; the data processing module analyzes data acquired by the data acquisition module, so that time sequence tags of the test light path and the reference light path can be acquired, and distances to be measured can be computed according to the time sequence tags by the aid of a conformation algorithm. The navigation and distance measurement system has the advantage that the distances can be precisely measured by the navigation and distance measurement system on the basis of a second-order correlation characteristic of the quantum entanglement light and corresponding data processing algorithms.

Description

technical field [0001] The invention designs quantum navigation technology, and in particular relates to a quantum entangled light-based navigation ranging system and an implementation method thereof. Background technique [0002] Navigation and ranging technology is produced with the needs of human political, economic and military activities. With the development of social economy and the progress of human science, people's demand for navigation and ranging technology tends to be long-distance and high-precision. [0003] Most traditional ranging technologies use lasers as light sources for ranging. Among them, according to the working mode of the laser, it can be roughly divided into continuous laser and pulse laser, and according to the different ways of generating laser, it can be divided into continuous phase laser ranging, infrared ranging and pulsed laser ranging. Due to the characteristics of good monochromaticity and strong directionality of laser, coupled with the...

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Application Information

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IPC IPC(8): G01S11/12
CPCG01S11/12
Inventor 肖俊俊韩笑纯李钦政方晨曾贵华
Owner SHANGHAI JIAO TONG UNIV
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