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.

引用

页数：5

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