Quantum laser radar based on wavelength-time quantum state random interleaved optical pulse sequence

A technology of optical pulse sequence and time quantum, which is applied in the direction of electromagnetic wave re-radiation, radio wave measurement system, measurement device, etc., to achieve the effect of expanding the scope of application, enriching technical concepts and connotations, and avoiding interference

Inactive Publication Date: 2018-11-30
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, it is not feasible to simply use four or more quantum state modulation information for anti-interference detection of the target.

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  • Quantum laser radar based on wavelength-time quantum state random interleaved optical pulse sequence
  • Quantum laser radar based on wavelength-time quantum state random interleaved optical pulse sequence
  • Quantum laser radar based on wavelength-time quantum state random interleaved optical pulse sequence

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention is further described, as image 3 As shown, it is used to illustrate the structural features and implementation methods of the system, rather than to limit the scope of application of the present invention. The specific embodiment of the quantum lidar system based on the randomly interleaved optical pulse sequence of the wavelength-time quantum state includes the following parts:

[0025] (1) Array quantum light source 1: Covering 5 wavelengths of 355nm, 532nm, 1064nm, 1.5μm, and 2μm respectively, the selected light sources are controlled by the information processing and subsystem 2, and send random quantum states time-sharing.

[0026] (2) Light source beam combining module 3: used to form wavelength-time-quantum polarization state randomly interleaved pulse sequence.

[0027] (3) Image square scanning and beam expanding emission system 4: the beam-combined quantum light sources of several waveleng...

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Abstract

The invention discloses a quantum laser radar based on a wavelength-time quantum state random interleaved optical pulse sequence, outputting an array quantum light source, which is transmitted by an image-side scanning and beam-expanding transmitting system to a detection target, passes through a receiving optical system and is detected through a polarization receiving module. The quantum light source performs random interleaving detection on the pulse sequence in a time series based on the multi-wavelength laser and the quantum polarization state to detect and analyze the target; and the undisturbed band is remained for target detection by discarding the quantum state statistical anomaly band and the time series coding band, of which the arrival time does not meet the transmission, whichcan effectively determine the interference of the future smart target to the quantum radar and effectively avoid the interference. Since the band used covers a large span of ultraviolet to infrared, the target's stealth coating cannot be completely covered, and the target's ability to intercept and interfere with information cannot completely cover all bands, so that the method is extremely safe.

Description

Technical field: [0001] The invention relates to the field of active optoelectronic technology, in particular to a laser radar and quantum radar measurement system. Background technique: [0002] With the increasing difficulty of satellite detection of long-distance stealth targets, and the increasingly complex electromagnetic interference in the electronic warfare environment, it is necessary to adopt a new radar detection concept, taking advantage of the advantages of strong anti-interference performance of quantum technology and the characteristics of high single-photon detection sensitivity , to solve the technical limitations of traditional radar in detection. [0003] In recent years, since the research and development of lidar has entered the photon detection system from the linear system, the sensitivity has been greatly improved; at the same time, the research of quantum communication, quantum imaging and other technologies has expanded the means of optical detectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/00G01S7/486
CPCG01S7/486G01S17/00
Inventor 李铭石冬松舒嵘
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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