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All-sky laser airborne three-layer multi-channel reflectarray

A reflective array and all-sky technology, which is applied in the field of all-sky laser airborne three-layer multi-channel reflective array, can solve the problems of large ranging blind area and small remote angle, and achieve simple production, enlarged receiving field of view, and reduced Effect of small test blind spots

Inactive Publication Date: 2011-12-14
XIAN TECHNOLOGICAL UNIV
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Problems solved by technology

[0004] The present invention provides an all-sky laser airborne three-layer multi-channel reflective array to overcome the disadvantages of the existing technology that the remote angle is too small and the ranging blind area is large

Method used

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  • All-sky laser airborne three-layer multi-channel reflectarray
  • All-sky laser airborne three-layer multi-channel reflectarray
  • All-sky laser airborne three-layer multi-channel reflectarray

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] see figure 1 and figure 2 , an all-sky laser airborne three-layer multi-channel reflective array provided by the present invention, based on the synthesis principle, the corner cube prisms in the reflective array are distributed in three layers according to space, and the structure distribution can be found in figure 1 . The reflective array shell used in the present invention is designed to be semi-hemispherical, with an external dimension of φ119×88.8mm. It transforms the smooth surface of the hemisphere into a quasi-hemispherical shell composed of 15 equilateral triangle planes with a side length of 70mm. Said corner cube prism is provided with 15, and the bottom surfaces of 15 corner cube prisms are respectively parallel to 15 equilateral triangle planes, are placed in the reflective array housing 6 correspondingly one by one, and are fixed and sealed...

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Abstract

The invention relates to a full horizon laser airborne three-layer multi-channel reflective array. A prior art has the disadvantages of a small remote angle and a large range finding blind area. A technical scheme of the invention is as follows: the full horizon laser airborne three-layer multi-channel reflective array comprises pyramid prisms, prism covers, gaskets, and reflective array shells with a similarly semispherical shape, a number of the pyramid prisms is 15, undersurfaces of the 15 pyramid prisms are parallel to 15 regular triangle planes respectively, and the pyramid prisms are placed in the reflective array shells respectively; the 15 regular triangle planes take hemisphere crowns as vertexes, one plane connects with other one, thus adjacent 5 planes form a regular five pyramid configuration, and the 15 regular triangle planes are distributed on 3 different latitudes in appearance, wherein each latitude has 5 planes. The full horizon laser airborne three-layer multi-channel reflective array has the advantages of full horizon, no blind area, all-weather and high reflection efficacies, wide suitable range, simple production and easiness of mass production.

Description

technical field [0001] The invention relates to the technical field of optical equipment, in particular to a reflective array in laser ranging, in particular to an all-sky laser airborne three-layer multi-channel reflective array. Background technique [0002] Satellite laser ranging is a high-precision space measurement technology that appeared in the mid-1960s. It is an important technical means for studying earth science and oceanography, and it also has important military application value. The laser reflective array is an optical device. In order to increase the energy of the reflected beam, it is installed on the target to be measured, and cooperates with the laser ranging equipment to measure the round-trip time interval of the laser pulse from the observation point to the target equipped with the reflective array, and calculate the Observing the distance from the point to the target to achieve precise distance measurement. At the same time, the laser can be used to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
Inventor 高明李建超杜玉军侯宏录吕宏王青松
Owner XIAN TECHNOLOGICAL UNIV
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