Installed performance analysis of radar antenna systems

Proceedings of the 1998 IEEE Radar Conference, RADARCON'98. Challenges in Radar Systems and Solutions (Cat. No.98CH36197) Pub Date : 1998-05-11 DOI:10.1109/NRC.1998.678021

J.J. Kim, O. Kesler

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Abstract

If modern airborne radar systems are to function properly, the radar antenna radiation patterns must meet certain specifications. Previously, most radar antennas were designed and tested in a clean antenna environment, i.e., there are no near field scattering from host structures, or radome effects. However, these higher order effects are a matter of increasing concern with added performance demands in the ever increasing jammer and clutter interference environments. We investigated the capabilities and limitations of currently available analysis techniques and computer codes for installed performance of airborne radar antenna systems. Then we developed a novel cascaded technique which could predict total installed performance of airborne radar antenna systems, i.e., the near field scattering from aircraft structures and radome effects. The cascaded technique utilized a ray-tracing method in both airframe and radome simulation. Thus, the cascaded technique can efficiently predict the total installed performance of large radar antenna systems on an aircraft structure.

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雷达天线系统安装性能分析

如果现代机载雷达系统要正常工作，雷达天线的辐射方向图必须符合一定的规范。以前，大多数雷达天线都是在干净的天线环境中设计和测试的，即没有来自主机结构的近场散射或天线罩效应。然而，在不断增加的干扰和杂波干扰环境中，这些高阶效应随着性能要求的增加而日益受到关注。我们调查了机载雷达天线系统安装性能的现有分析技术和计算机代码的能力和局限性。然后，我们开发了一种新的级联技术，可以预测机载雷达天线系统的总体安装性能，即来自飞机结构和天线罩效应的近场散射。级联技术在机身和天线罩模拟中都采用了射线追踪方法。因此，级联技术可以有效地预测飞机结构上大型雷达天线系统的总体安装性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 1998 IEEE Radar Conference, RADARCON'98. Challenges in Radar Systems and Solutions (Cat. No.98CH36197)

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