A Precise Installation Method of Large Phased Array Antenna Based on Mathematical Modeling
A technology of phased array antenna and installation method, which is applied in the directions of antenna support/installation device, informatics, electrical digital data processing, etc., can solve the problems affecting the accuracy and efficiency of antenna installation, and achieve installation accuracy, which is easy to guarantee and reduce The number of installations and adjustments and the effect of high installation efficiency
Active Publication Date: 2019-02-15
BEIJING INST OF SPACECRAFT SYST ENG
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[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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[0054] The present invention will be further described below in conjunction with the drawings and specific embodiments.
[0055] Taking the installation process of a large phased array antenna of a satellite system as an example, the coordinate positions required by the system corresponding to the center points of the three installation surfaces on the star are known as A(xa,ya,za), B(xb,yb,zb), C (xc, yc, zc), the integrated flatness R0 (unit: mm) and integrated direction N0 = {cosα, cosβ, cosγ} required for the precise installation of the large-scale phased array antenna of the system, the integrated flatness of the deployment refers to Scan the target points of the antenna array by laser radar and other precision measurement equipment to obtain the fitting flatness; integrated direction refers to scanning the target points of the antenna array and obtain the three-direction angle between the normal of the fitted plane and the star coordinate system The composed vector N0={cosα...
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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 implementing precise installation technology of large phased array antennas based on mathematical modeling. The main application direction is large-scale phased array antenna precise installation and high installation accuracy requirements. Commissioning. Background technique [0002] In recent years, with the rapid development of spacecraft payload technology, large-scale phased array antennas (plane phased array antennas with a single wing length of more than 5 meters, double wing lengths of more than 10 meters or parabolic antennas with a diameter of more than 10 meters) are due to their high resolution The characteristics of high-speed, multi-polarization, and multiple working modes have been more and more used in the field of microwave remote sensing. However, high-quality satellite image quality also puts forward higher r...
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IPC IPC(8): H01Q1/12G06F17/50
CPCG16Z99/00H01Q1/12
Inventor 蔡亚宁张庆君刘杰何德华肖刚肖鹏飞张妍陈恩涛马健王涛
Owner BEIJING INST OF SPACECRAFT SYST ENG