基于混合极化架构的极化SAR:原理与应用(英文)

洪文

doi:10.12000/JR16074

基于混合极化架构的极化SAR:原理与应用(英文)

doi: 10.12000/JR16074

洪文^,

1.
(微波成像技术国家重点实验室北京 100190)
2.
(中国科学院电子学研究所北京 100190)
3.
(中国科学院大学北京 100049)

基金项目:

国家自然科学基金（61431018）

详细信息

作者简介:
洪文(1968-),女,研究员,1997年毕业于北京航空航天大学,获工学博士学位。研究经历包括北京航空航天大学电子工程系副教授、德国宇航院雷达与微波技术所(DLR-HF)客座研究员等,现为中国科学院电子学研究所研究员,博士生导师,院优秀教师获得者,中科院"百人计划"。主要研究方向为极化/极化干涉SAR处理及应用、3维SAR信号处理、圆迹SAR信号处理以及稀疏微波成像技术。

通讯作者:
洪文whong@mail.ie.ac.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2016-05-17
- 修回日期: 2016-08-12
- 网络出版日期: 2016-12-28

Hybrid-polarity Architecture Based Polarimetric SAR: Principles and Applications (in English)

Hong Wen^,

1.
(National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China)
2.
(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
3.
(University of Chinese Academy of Sciences, Beijing 100049, China)

Funds:

The National Natural Science Foundation ofChina (61431018)

摘要

摘要: 合成孔径雷达（Synthetic Aperture Radar，SAR）应用性能主要受限于同时获取高分辨与宽测绘幅宽的雷达图像的能力。而对于极化SAR（Polarimetric SAR，PolSAR）系统而言，其测绘幅宽更加受限。近年来，称为混合极化（Hybrid-Polarity，HP）架构的新型极化SAR架构吸引了广泛的注意。相比于传统的线性极化SAR，基于混合极化架构的极化SAR具有两点重要优势：更宽的测绘幅宽与更低的硬件要求。该文首先回顾了包括系统设计、系统模型与定标方法在内的混合极化架构相关原理。接着详细阐述了混合极化架构在定标与发射配置两个方面在工程实现中的难点并提出了一种改进型混合极化架构。与此同时，还介绍了以实验验证为目的而开发的原型实验系统。该文的后半部分回顾了适用于基于混合极化架构的极化SAR的相关应用。由于基于混合极化架构的极化SAR系统产生的全极化数据可以直接转换为传统的线性全极化数据，因此这一部分内容主要集中在对应的双极化应用，即简缩极化（Compact Polarimetry，CP）应用上。
- 合成孔径雷达 /
- 极化SAR /
- 混合极化架构 /
- 简缩极化 /
- 定标 /
- 分类 /
- 简缩极化干涉SAR
Abstract: The application performance of Synthetic Aperture Radar (SAR) instruments is generally limited in their capability to acquire radar images with both high-resolution and wide swath coverage.The available swath width of Polarimetric SAR (PolSAR) systems is even more restricted.Recently, a new PolSAR architecture called the Hybrid-Polarity (HP) architecture has attracted worldwide attentions.Compared with conventional linearly-polarized PolSARs, HP architecture based PolSARs have significant advantages such as wider swath coverage and lower hardware requirement.In this paper, the principles of the HP architecture, including system designs, system models and calibration methods are first reviewed.Two implementation difficulties of the HP architecture, concerning calibration issue and transmit configuration are illustrated.In order to overcome these problems, an improved version of the HP architecture is proposed.A prototype system based on this improved HP architecture developed for experimental validation is also introduced.In the latter part of this paper, applications suitable for the HP architecture based PolSARs are reviewed.Since the quadrature-polarimetric (quad-pol) data provided by an HP architecture based PolSAR system may be directly transformed into conventional linearly-polarized quad-pol data, this part of review is mainly focused on the corresponding dual-pol applications, i.e.Compact Polarimetry (CP) applications.
- Synthetic Aperture Radar(SAR) /
- Polarimetric SAR(PolSAR) /
- Hybrid-polarity architecture /
- Compact Polarimetry(CP) /
- Calibration /
- Classification /
- Compact PolSAR interferometry

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