Method for quickly and accurately adjusting the array plane attitude precision of multi-plate planar antenna

Abstract

The method for quickly and accurately adjusting the array plane attitude precision of the multi-plate planar antenna comprises the following steps that: an array plane attitude measurement and adjustment reference is established; a multi-plate planar antenna is modularly assembled, and after each module is assembled, array plane attitude rapid test, test result analysis and judgment and quantitative adjustment scheme making and adjustment are sequentially carried out, so that the array plane attitude precision of each module after adjustment meets the requirements, and finally, the array planeattitude precision of the multi-plate planar antenna is ensured to meet the requirements. According to the method for quickly and accurately adjusting the array plane attitude precision of the multi-plate planar antenna, in combination with the assembly process of the multi-plate planar antenna, stripping analysis of all factors influencing the array plane attitude precision of the antenna is achieved, the coupling relation between all the influence factors is eliminated, and accurate debugging can be carried out for all the influence factors.

Description

technical field [0001] The invention relates to the technical field of satellite AIT (Assembly Integration Test), in particular to a method for quickly and accurately adjusting the attitude accuracy of a multi-board planar antenna array. Background technique [0002] The multi-plate planar antenna is an important payload in the satellite field. At present, the array attitude accuracy of the multi-plate planar antenna is extremely high, which is specifically reflected in the requirements of high flatness and high pointing accuracy. Since the design structure of multi-board planar antennas is mostly complicated, it usually includes multiple large and heavy antenna boards, multiple sets of complex spatially expandable pole structures, and as many as ten unfolding and locking links, which affect the multi-board planar antenna. There are many factors and mutual coupling of array attitude accuracy, such as the mechanical interface accuracy and reference accuracy of the antenna mou...

AI Technical Summary

Problems solved by technology

[0004] 1. The error of the test method is relatively large: in the traditional measurement and adjustment method, the prism on the antenna mounting carrier is used as the test benchmark for the attitude accuracy of the array. The prism is pasted on the reference plane of the antenna mounting carrier by glue. The accuracy of the antenna array will change after the mechanical test. The attitude accuracy of the array based on the prism test will introduce the angle error between the prism and the reference plane, resulting in inaccurate testing of the attitude accuracy of the antenna array, and cannot accurately guide the adjustment of the attitude accuracy of the antenna array;

[0005] 2. No accurate quantification and executable adjustment plan has been formed: the traditional measurement and adjustment method does not accurately analyze the factors that affect the attitude accuracy of the antenna array, does not realize the stripping analysis of each influencing factor, does not eliminate the coupling relationship between the influencing factors, and cannot Carry out precise debugging for each influencing factor, cannot accurately locate the debugging position, cannot quantify the adjustment amount, and has low enforceability in the actual production process;

[0006] 3. The measurement and adjustment efficiency is extremely low: the planar antenna usually needs to be measured and adjusted dozens of times during the entire assembly and deployment process. Due to the large amount of test data, the conversion of camera data and theodolite data, and complex calculation algorithms, the traditional measurement and adjustment method requires only one measurement. The average time-consuming is 3h, and the efficiency of measurement and adjustment is extremely low, which cannot meet the actual production needs

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