Distortion measurement and compensation in a synthetic aperture radar phased-array antenna

2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference Pub Date : 2010-07-05 DOI:10.1109/ANTEM.2010.5552555

David Peterman, K. James, V. Glavac

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引用次数: 14

Abstract

This paper describes a metrology system for measuring deflection of a phased-array antenna panel. It will be implemented in a novel space-borne synthetic aperture radar system called WiSAR (Wireless Synthetic Aperture Radar). WiSAR uses a wireless signal interface between a boom-mounted space-feed antenna and a lightweight phased-array antenna panel. As a result of the flexible, light-weight antenna panel construction, MDA has developed the Antenna Distortion Measurement System (ADMS) to monitor any mechanical distortions of the antenna panel and allow the beam formation to be compensated accordingly. The system uses a series of markers (WiSense nodes) distributed over the antenna panel, and sequentially measures the position of each marker relative to the space-feed antenna. Once the antenna panel shape has been measured, the desired beam shape can be maintained by adjusting the phase shift of the active phased-array elements (WiNodes).

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合成孔径雷达相控阵天线畸变测量与补偿

本文介绍了一种测量相控阵天线面板偏转的测量系统。它将在一种名为WiSAR(无线合成孔径雷达)的新型星载合成孔径雷达系统中实现。WiSAR在臂架空间馈电天线和轻型相控阵天线面板之间使用无线信号接口。由于天线面板结构灵活，重量轻，MDA开发了天线畸变测量系统(ADMS)来监测天线面板的任何机械畸变，并允许相应地补偿波束形成。该系统使用分布在天线面板上的一系列标记(WiSense节点)，并依次测量每个标记相对于空间馈电天线的位置。一旦测量了天线面板形状，就可以通过调整有源相控阵元件(WiNodes)的相移来保持所需的波束形状。

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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2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference

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