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首页> 外文会议>Fifth Asia International Symposium on Mechatronics >Effects of random errors in different rings on reflector's gain and sidelobe levels
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Effects of random errors in different rings on reflector's gain and sidelobe levels

机译：不同环中随机误差对反射器增益和旁瓣电平的影响

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摘要

Effect analysis of the reflector surface errors on radiation characteristics is one important research topic. In this paper, a mathematical model is developed to describe the influencing degree of the random errors in different rings on reflector's gain and sideloble level (SLL). Then, based on the proposed model, through the analysis for the errors in different rings, the curves for the gain loss (GL) and the first sidelobe level increase (SLLI) are presented to show the effects of random errors in different rings on radiation characteristics. First, to show their correctness, several simulations with different non-uniform surface errors are presented. Then, a multi-objective optimization model is constructed to further analyze the effects of the errors in different rings. Some useful results have been obtained. Simulations show that the errors' distribution along the radius has an important effect on GL and SLLI, and the errors' non-uniformity should also be considered in the evaluation of the reflector surface.
机译：反射镜表面误差对辐射特性的影响分析是一项重要的研究课题。本文建立了一个数学模型来描述不同环中随机误差对反射器增益和旁瓣电平（SLL）的影响程度。然后，在提出的模型的基础上，通过分析不同环中的误差，给出了增益损耗（GL）和第一旁瓣电平增加（SLLI）的曲线，以显示不同环中随机误差对辐射的影响。特征。首先，为了展示其正确性，提出了几种具有不同非均匀表面误差的仿真。然后，构建了一个多目标优化模型，以进一步分析不同环中误差的影响。已获得一些有用的结果。仿真表明，误差沿半径的分布对GL和SLLI有重要影响，在评估反射镜表面时还应考虑误差的不均匀性。

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