...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geoscience and Remote Sensing, IEEE Transactions on >Bistatic SAR Experiments With PAMIR and TerraSAR-X—Setup, Processing, and Image Results
【24h】

Bistatic SAR Experiments With PAMIR and TerraSAR-X—Setup, Processing, and Image Results

机译：使用PAMIR和TerraSAR-X的双基地SAR实验-设置，处理和图像结果

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The spatial separation of the transmitter and the receiver in bistatic synthetic aperture radar (SAR) enables a variety of data acquisition geometries to achieve benefits like the increased information content of bistatic SAR data. In the case of hybrid bistatic SAR constellations where the transmitter is spaceborne and the receiver is onboard an aircraft, one has to deal with a huge discrepancy between platform velocities. This paper presents bistatic spaceborne/airborne SAR experiments, where the radar satellite TerraSAR-X is used as a transmitter and the airborne SAR sensor Phased Array Multifunctional Imaging Radar (PAMIR) of the Fraunhofer Institute for High Frequency Physics and Radar Techniques (FHR) is used as a receiver. Both sensors are equipped with phased-array antennas, which offer the possibility of beam steering and could be used for the first time for the “double sliding spotlight mode.” In this mode, the space- and airborne sensors operate with different sliding factors (ratio between footprint and platform velocity). The performance of two different experiments is analyzed, and the novel double sliding spotlight mode is presented. This paper describes the experimental setups, the synchronization system, and the data acquisition. The image results were processed by a modified backprojection algorithm and a frequency-domain algorithm. The analysis of the final bistatic images comprises the spatial resolution and the scattering behavior of selected objects. Parts of the bistatic SAR images are compared with the corresponding monostatic images of PAMIR and TerraSAR-X. It will be shown that hybrid bistatic SAR is a worthwhile and helpful addition to current monostatic SAR.
机译：双基地合成孔径雷达（SAR）中发射器和接收器的空间分隔使多种数据采集几何结构能够实现诸如双基地SAR数据信息量增加等优势。在混合双基地SAR星座的情况下，发射器位于太空，接收器位于飞机上，因此必须处理平台速度之间的巨大差异。本文介绍了双基地星载/机载SAR实验，其中将雷达卫星TerraSAR-X用作发射器，而弗劳恩霍夫高频物理和雷达技术研究所（FHR）的机载SAR传感器相控阵多功能成像雷达（PAMIR）为用作接收器。这两个传感器都配备有相控阵天线，提供了波束控制的可能性，并且首次用于“双滑动聚光灯模式”。在这种模式下，空间传感器和机载传感器以不同的滑动因子（足迹与平台速度之比）运行。分析了两个不同实验的性能，并提出了新颖的双滑动聚光灯模式。本文介绍了实验设置，同步系统和数据采集。通过改进的反投影算法和频域算法对图像结果进行处理。最终双基地图像的分析包括所选对象的空间分辨率和散射行为。将部分双基地SAR图像与PAMIR和TerraSAR-X的相应单基地图像进行比较。将会显示，混合双基地SAR是当前单基地SAR的一项有价值且有益的补充。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号