Multi-aspect SAR-GMTI and experimental research on gaofen-3 SAR modes

被引：0

作者：

Shen W. ^{[1
,2
,3
]}

Han B. ^{[1
,2
,3
]}

Lin Y. ^{[4
]}

Hu Y. ^{[1
,2
,3
]}

Hong W. ^{[1
,2
,3
]}

机构：

[1] Aerospace Information Research Institute, Chinese Academy of Science, Beijing

[2] University of Chinese Academy of Sciences, Beijing

[3] Key Laboratory of Technology in Geo-spatial Information Processing and Application System, Beijing

[4] North China University of Technology, Beijing

来源：

Journal of Radars | 2020年 / 9卷 / 02期

关键词：

Dual channels mode; Gaofen-3; Ground Moving Target Indication(GMTI); Multi-aspect SAR; Staring spotlight mode;

D O I：

10.12000/JR20021

中图分类号：

学科分类号：

摘要：

Multi-aspect SAR is a new SAR mode that has two advantages, i.e., long-term observations and a large synthetic-aperture azimuth angle. Previous studies have reported that these unique advantages enable even single-channel systems to have a relatively strong capability for detecting moving targets, i.e., multi-aspect SAR expands and improves the moving-target-related capabilities of the earlier SAR satellite system without increasing its complexity. As such, multi-aspect SAR-GMTI has become a trending topic for research. After reviewing the recent progress and research basis of multi-aspect SAR-GMTI, in this paper, we present our research on the Gaofen-3 SAR, which includes: moving-target detection methods that use the staring spotlight mode, dual-channels GMTI mode, and the dual-channel spotlight GMTI mode. With the results obtained by this research, we hope to establish a basis for the engineering implementation of current and future spaceborne single-channel SAR-GMTI modes and the design of a future spaceborne multi-aspect SAR mode capable of retrieving time-series and dynamic scene information. © 2020 Institute of Electronics Chinese Academy of Sciences. All rights reserved.

引用

页码：304 / 320

页数：16

共 29 条

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