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Method and device for spaceborne high angular resolution laser warning detection

A technology of laser alarm and detection device, applied in measurement device, measurement angle, optical radiation measurement and other directions, can solve the problems of small number of detection bands, low angular resolution, inconvenient for spaceborne, etc., and achieves compact structure and wavelength resolution. High rate, reduced volume and mass effect

Inactive Publication Date: 2018-08-24
ZHONGBEI UNIV
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Problems solved by technology

However, this method has a small number of detection bands, requires multiple focal plane detectors, has low angular resolution, complex structure, and large volume, which is not convenient for spaceborne

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  • Method and device for spaceborne high angular resolution laser warning detection
  • Method and device for spaceborne high angular resolution laser warning detection
  • Method and device for spaceborne high angular resolution laser warning detection

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Embodiment Construction

[0032] The following embodiments will further describe the present invention in conjunction with the accompanying drawings.

[0033] like figure 1 As shown, a space-borne high-angle resolution laser warning detection device is mainly divided into two parts: the first part is composed of a blazed grating 1, a short-focus lens 2 and a focal plane detector 3 to roughly measure the laser wavelength and angle module; the second part is a high-precision angle positioning measurement module composed of a lens array 4 , a mirror 5 , a half mirror 6 and a focal plane detector 3 . The first part provides preliminary laser angle information, and provides corresponding parameters for the second part to select a specific lens. like figure 1 As shown, the focal point of each lens is located at the center of the focal plane detector 3 . Each lens detects a different position, but all the lenses share one detector, which not only improves the angle positioning accuracy, but also reduces th...

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Abstract

The invention relates to the technical field of laser alarm detection, specifically to a space-borne high-angle-resolution laser alarm detection method and apparatus. The system only needs one focal plane detector for realizing laser high-angle-resolution detection, and laser wavelength information is obtained through raster diffraction. The system has the advantages of compact structure, large view field, high angle resolution, great number of detection wavelengths and small sizes and is applicable to space-borne laser alarm. Measurement of wavelength and rough incident direction of the detected laser is realized through blazed grating, a short-focus lens and a focal plane detector. The rough measurement of the incident direction provides an incidence angle scope for high-precision angle measure through a lens array, in which each lens correspond to one small laser incidence angle scope, and each the small laser incidence angle scope corresponds to each pixel of the focal plane detector to realize high -resolution angle measurement. The angle positioning precision of a laser alarm system is substantially improved. The space-borne high-angle-resolution laser alarm detection method and apparatus are mainly applicable to laser detection.

Description

technical field [0001] The present invention relates to the technical field of laser warning detection, and more specifically, to a method and device for spaceborne high-angle-resolution laser warning detection. Direction and wavelength detection methods. Background technique [0002] With the development of anti-satellite weapons, especially the development of laser weapons, in order to improve the survival rate of satellites, countries pay great attention to the detection and warning of laser threats. The military powers led by the United States and Russia are actively developing satellite technology while developing Anti-satellite weapons, and have carried out a large number of laser anti-satellite experiments and actual combat. In order to protect satellites, it is very necessary to carry out research on spaceborne laser warning technology. Laser warning technology is an important component of photoelectric countermeasures. The rapid and accurate acquisition of inciden...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J9/00G01C1/00
CPCG01C1/00G01J9/0246
Inventor 张瑞李晓王志斌陈媛媛李克武李晋华张敏娟薛锐
Owner ZHONGBEI UNIV
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