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Real-time adjustment method of double-reflecting surface antenna shape surface based on best fitting

A technology of real-time adjustment and dual reflectors, applied to antennas, electrical components, etc., can solve problems such as real-time adjustment of difficult large reflector antenna shapes

Active Publication Date: 2018-11-23
XIDIAN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

In engineering, it is currently difficult to achieve real-time adjustment of the antenna shape of large reflectors

Method used

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  • Real-time adjustment method of double-reflecting surface antenna shape surface based on best fitting
  • Real-time adjustment method of double-reflecting surface antenna shape surface based on best fitting
  • Real-time adjustment method of double-reflecting surface antenna shape surface based on best fitting

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Embodiment Construction

[0067] The present invention will be further described below with reference to the accompanying drawings and implementation cases.

[0068] refer to figure 1 , a real-time adjustment method for the shape of a dual-reflector antenna based on the best fit, the implementation steps are as follows:

[0069] Step 1, install the laser measuring equipment and select the position and orientation positioning point of the secondary reflector;

[0070] like figure 2 As shown in the figure, the laser ranging system is installed on the back of the sub-reflection surface, and the laser probe can be located at the vertex of the sub-reflection surface during measurement through structural design or mechanism design. , where O is the coordinate origin, located at the vertex of the sub-reflection surface, the O-z axis points to the main reflection surface, and is perpendicular to the aperture surface; on the sub-reflection surface, calibrate two sub-reflection surface pose positioning points...

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Abstract

The invention belongs to the technical field of radar antennas, in particular to a real-time adjustment method for a double-reflecting surface antenna shape surface based on the best fitting. According to the real-time adjustment method for the double-reflecting surface antenna shape surface based on the best fitting, a laser measuring device is installed on the back surface of a secondary reflecting surface, and the surface shape of a main reflecting surface is measured from the position of the secondary reflecting surface. The pose matching of the secondary reflecting surface is realized while realizing the surface shape detection of the main reflecting surface, and the real-time adjustment method is applicable to a non-active main reflecting surface antenna and an active main reflectingsurface antenna. On the premise that it is ensured that a measuring system does not affect the antenna electrical performance, the real-time adjustment of the antennas during service can be realized,and the formative factor of antenna deformation is not required to be considered. The real-time adjustment method for the double-reflecting surface antenna shape surface based on the best fitting issuitable for gravity load, steady-state wind load, slowly-changing temperature load and processing and installation errors, and is applied to the real-time adjustment of the shape surface of the largedouble-reflecting surface antenna during service.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, in particular to a method for real-time adjustment of the shape of a double-reflector antenna based on best fitting, which is applied to the real-time adjustment of the shape of a large double-reflector antenna during service. Background technique [0002] Large-diameter, high-frequency reflector antennas are widely used in deep space exploration, radio astronomy and other fields, such as the 100-meter Green Bank radio telescope in the United States and the 65-meter Tianma telescope in Shanghai. When the diameter of the antenna increases, the area for receiving electromagnetic signals increases, and its electrical performance is greatly improved. However, on the one hand, the large diameter makes the antenna structure weigh thousands of tons, and it is easily affected by external loads other than gravity, such as wind load, temperature load, etc. The electrical performance is greatly dete...

Claims

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Application Information

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IPC IPC(8): H01Q15/14H01Q19/19
CPCH01Q15/147H01Q19/19
Inventor 连培园王从思王娜许社教杜淑幸许谦项斌斌许万业保宏
Owner XIDIAN UNIV
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