• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing >Processing of Very High Resolution Spaceborne Sliding Spotlight SAR Data Using Velocity Scaling
【24h】

Processing of Very High Resolution Spaceborne Sliding Spotlight SAR Data Using Velocity Scaling

机译：使用速度缩放处理超高分辨率星载滑动聚光SAR数据

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

In spaceborne synthetic aperture radar, the sliding spotlight mode can acquire high resolution and large azimuth scene size simultaneously. However, when the resolution is very high and the azimuth scene size is large, the traditional hyperbolic range model (HRM) is inaccurate and the variation of the equivalent velocity in azimuth dimension cannot be ignored. Thus, the traditional imaging algorithms based on HRM are no longer available. For this problem, this paper proposes an equivalent acceleration range model, which can precisely take into account the spaceborne curved orbit. Then, velocity scaling algorithm based on this new range model is proposed to meet the needs of very high resolution and large azimuth scene size. The results of the simulation validate the effectiveness of the new range model and the imaging algorithm.
机译：在星载合成孔径雷达中，滑动聚光灯模式可以同时获取高分辨率和大方位角场景大小。但是，当分辨率很高且方位角场景尺寸较大时，传统的双曲线距离模型（HRM）不够精确，并且方位角等效速度的变化也不能忽略。因此，基于HRM的传统成像算法不再可用。针对这个问题，本文提出了一个等效的加速度范围模型，该模型可以精确地考虑星载弯曲轨道。然后，提出了基于这种新的距离模型的速度缩放算法，以满足非常高分辨率和大方位角场景大小的需求。仿真结果验证了新距离模型和成像算法的有效性。

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