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Real-time Adjustment Method of Double-reflector Antenna Shape Based on Best Fit

A technology of real-time adjustment and reflection surface, applied to antennas, electrical components, etc., can solve problems such as real-time adjustment of difficult large-scale reflection surface antenna shape and surface

Active Publication Date: 2020-05-08
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-reflector Antenna Shape Based on Best Fit
  • Real-time Adjustment Method of Double-reflector Antenna Shape Based on Best Fit
  • Real-time Adjustment Method of Double-reflector Antenna Shape Based on Best Fit

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Embodiment Construction

[0067] The present invention will be further described below in conjunction with accompanying drawings and examples of implementation.

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

[0069] Step 1, install the laser measurement equipment and select the pose positioning point of the secondary reflector;

[0070] Such as figure 2 As shown, install the laser distance measuring system on the back of the sub-reflector, and ensure that the laser probe can be located at the apex of the sub-reflector during measurement through structural design or mechanism design. , where O is the coordinate origin, located at the apex of the sub-reflector, the O-z axis points to the main reflector, and is perpendicular to the aperture surface; two sub-reflector pose orientation points are calibrated on the sub-reflector: O point and O-z axis Point D, then the coordinates of point O and poin...

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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 optimal fitting, which is applied to the real-time adjustment of the shape of a large-scale double-reflector antenna during service. Background technique [0002] Large-aperture, 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 antenna diameter increases, the area receiving electromagnetic signals increases, and its electrical performance is greatly improved. However, on the one hand, the large diameter causes the antenna structure to weigh thousands of tons, and is easily affected by external loads other than gravity, such as wind loads, temperature loads, etc., resulting in large deformation of the ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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