Interferometric ISAR imaging for space moving targets on a squint model using two antennas

被引：6

作者：

Tian, Biao ^{[1
]}

Liu, Yang ^{[1
]}

Tang, Da ^{[1
,2
]}

Xu, Shiyou ^{[1
]}

Chen, Zengping ^{[1
]}

机构：

[1] Natl Univ Def Technol, Sci & Technol Automat Target Recognit Lab ATR, Changsha 410073, Hunan, Peoples R China

[2] Beijing Inst Tracking & Telecommun Technol, Beijing 100094, Peoples R China

来源：

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2014年 / 28卷 / 17期

基金：

国家高技术研究发展计划(863计划);

关键词：

coherent processing; interferometric ISAR; squint model; matched filter; wideband direct sampling; image registration; high-speed movement compensation; MANEUVERING TARGET;

D O I：

10.1080/09205071.2014.954008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a novel InISAR imaging method for space moving targets on a squint model using two antennas. In the pre-processing for range compression based on wideband direct sampling data, an adaptive matched filter containing speed is designed to carry out high-speed movement compensation that is essential for space targets. In order to reserve the phase history of each antenna, coherent processing for ISAR imaging is adopted. The corresponding size can be achieved by interferometric processing of the two complex ISAR images. Considering the condition may not be strictly satisfied, the influence of 3D motion and squint model is analyzed and a compensation method is adopted. Image distortion is corrected using coordinate transform. Simulation results confirm the effectiveness of the analysis and 3D imaging algorithm.

引用

页码：2135 / 2152

页数：18

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