PROCESSING SPACEBORNE INTERRUPTED FMCW SAR DATA WITH MODIFIED APERTURE INTERPOLATION TECHNIQUE

被引：0
|
作者：
Li, Ning [1 ]
Niu, Shilin [1 ]
Guo, Zhengwei [1 ]
Wu, Lin [1 ]
Cao, Zhiwei [1 ]
机构：
[1] Henan Univ, Sch Comp & Informat Engn, Kaifeng 475004, Peoples R China
来源：
IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2018年
基金：
美国国家科学基金会;
关键词：
Synthetic aperture radar (SAR); frequency-modulated continuous-wave (FMCW); artifacts; IMAGING ALGORITHM;
D O I：
暂无
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：
Interrupted FMCW (IFMCW) SAR mode, which only employs a single antenna from a single micro-satellite, was proposed by Ahmed et al., recently. However, periodical data gaps will occur in the interrupted mode, caused by the process of switching the radar transmitter on and off. To solve this problem, in this paper, a modified aperture-interpolation-based approach is proposed to fill the data gaps. The approach can recover the gapped data with excellent performance and thus significantly suppress the artifacts (or ghosts) induced by the periodical data gaps. Processing results of real data acquired with an experimental airborne FMCW SAR system, demonstrate the effectiveness of the proposed approach.
引用
收藏
页码：6695 / 6698
页数：4
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