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Large phased array antenna accurate installation method based on mathematical modeling

A technology of phased array antenna and installation method, which is applied in the fields of antenna support/installation device, informatics, electrical digital data processing, etc., and can solve problems affecting the accuracy and efficiency of antenna installation

Active Publication Date: 2016-12-14
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

[0008] The technical solution of the present invention is to overcome the shortcomings of the traditional manual trial and error and repeated commissioning of equipment installation mode, and provide a precise installation method suitable for large-scale phased array antennas with complex installation surfaces. Based on the data, the commissioning process of the large-scale phased array antenna is transformed into a mathematical model, the adjustment pad addition plan is calculated, and the pads are added according to the calculation results, which avoids the repeated trial and error adjustment of the large-scale phased array antenna and affects the antenna installation. Questions of Accuracy and Efficiency

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  • Large phased array antenna accurate installation method based on mathematical modeling
  • Large phased array antenna accurate installation method based on mathematical modeling
  • Large phased array antenna accurate installation method based on mathematical modeling

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0055] Taking the installation process of a large-scale phased array antenna of a certain satellite system as an example, it is known that the coordinates required by the system corresponding to the center points of the three installation surfaces on the star are A(xa,ya,za), B(xb,yb,zb), C (xc, yc, zc), the comprehensive flatness R0 (unit: mm) and comprehensive pointing N0={cosα, cosβ, cosγ} required by the precise installation of the large-scale phased array antenna of the system, the expanded comprehensive flatness refers to The fitting flatness is obtained by scanning the target point of the antenna array by precise measurement equipment such as laser radar; the comprehensive pointing refers to the three-direction angle between the normal line of the fitting plane and the star coordinate system obtained by scanning the target point of the an...

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Abstract

The invention discloses a large phased array antenna accurate installation method based on mathematical modeling, is suitable for single-wing or double-wing large phased array antenna accurate installation and adjustment and measurement of large size and high requirement of installation accuracy, and belongs to the field of microwave remote sensing general installation design. The method comprises the steps that (1) a star coordinate system is established; (2) fine adjustment of the star attitude is performed; (3) the coordinates of the installation points on the antenna and the start are measured; (4) a mathematical model is established and a gasket is calculated and adjusted; (5) the gasket is additionally arranged to install the antenna according to the calculation result; and (6) the planar integrated direction is measured and the gasket is corrected. The problems of the influence of repeated trial installation and adjustment of the large phased array antenna on the antenna installation accuracy and efficiency can be avoided so that the method has the advantages that project implementation is high, the installing accuracy can be easily guaranteed, the frequency of installation and adjustment and accurate measurement can be reduced and the installation efficiency can be enhanced.

Description

technical field [0001] The invention belongs to the field of overall assembly design of microwave remote sensing, and specifically relates to a method for realizing precise installation technology of large-scale phased array antennas based on mathematical modeling. Commissioning. Background technique [0002] In recent years, with the rapid development of spacecraft payload technology, large phased array antennas (plane phased array antennas with a length of more than 5 meters for a single wing and a plane phased array antenna with a length of more than 10 meters for both wings or parabolic antennas with a diameter of Ratio, multi-polarization, multiple working modes and other characteristics have been more and more applied in the field of microwave remote sensing. However, high-quality satellite image quality also puts forward higher requirements for the installation accuracy of large-scale phased array antennas. . [0003] The installation accuracy of a large phased arra...

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Application Information

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IPC IPC(8): H01Q1/12G06F19/00
CPCG16Z99/00H01Q1/12
Inventor 蔡亚宁刘杰何德华张君刚肖刚肖鹏飞张妍陈恩涛马健王涛
Owner BEIJING INST OF SPACECRAFT SYST ENG
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