Multichannel Along-Track Interferometric SAR System Implementation Using FMCW Radar

被引：0
|
作者：
Kang, Young-Geun [1 ]
Park, Seungwoon [1 ]
Kim, Eunsung [1 ]
Kim, Kyeongrok [2 ]
Park, Seong-Ook [1 ]
机构：
[1] Korea Adv Inst Sci & Technol KAIST, Sch Elect Engn, Daejeon 34141, South Korea
[2] Hanwha Syst, Satellite Syst Team 2, Yongin 17121, South Korea
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2023年 / 20卷
关键词：
Along-track synthetic aperture radar interferometry (ATI); frequency-modulated continuous wave (FMCW); radial velocity estimation; MOVING TARGETS; VSAR;
D O I：
10.1109/LGRS.2023.3307187
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Along-track synthetic aperture radar interferometry (ATI) systems are used to detect a moving target and to estimate its radial velocity. A dual-channel (single-baseline) ATI system estimates the velocity ambiguously because there are many candidate velocities corresponding to the interferometric phase. To resolve the ambiguity of the estimates, a multichannel (multibaseline) ATI system is required. This letter proposes an efficient implementation technique of a multichannel ATI system by using a frequency-modulated continuous wave (FMCW) radar and an antenna arrangement method considering the inherent bi-static characteristic of FMCW radars. Also, a simple and robust radial velocity estimation algorithm suitable for the proposed system model is presented. The validity of the algorithm is confirmed with simulated ATI results.
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页数：5
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