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| Study on High-resolution Imaging of Ground-based MIMO Radar Based on Time-division Multiplexing |
| JIANG Liubing①② YANG Tao② CHE Li①② |
①(Guangxi Wireless Broadband Communication and Signal Processing Key Laboratory, Guilin University of Electronic Technology, Guilin 541004, China)
②(School of Information and Communication Engineering, Guilin University of Electronic Technology, Guilin 541004, China) |
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Abstract Ground-based radar imaging based on time-division multiplexing MIMO can be used in many important applications, such as application to landslide monitoring in place of synthetic aperture radar imaging. For efficient high-resolution imaging of the ground-based radar based on time-division multiplexing MIMO, an imaging algorithm based on Inverse Fast Fourier Transform (IFFT) pulse compression and beamforming is proposed. High range resolution is obtained by stepped frequency continuous wave technology and high azimuth resolution is obtained by MIMO technology. The range compression of radar data is realized by IFFT and the cross-range compression of radar data is realized by beamforming algorithm. Furthermore, phase discontinuity problem of received signal caused by MIMO antenna arrays is appropriately corrected in the algorithm, both efficiency of this algorithm and imaging quality are also improved. A numerical simulation proves feasibility of this imaging algorithm according to the practical parameters in monitoring and imaging scenario of landslide, and the proposed imaging algorithm has good theoretical performance when it is applied to landslide monitoring.
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Received: 30 July 2015
Published: 14 March 2016
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| Fund: The National Natural Science Foundation of China (61561010), Guangxi Natural Science Foundation (2013- GXNSFAA019323), Guangxi Scientific Research and Technological Development Project (guikegong 14122006-6), Guangxi Department of Education Research Project (KY2015LX096), Project of Guangxi Key Laboratory of Wireless Broadband Communications and Signal Processing Director Foundation (GXKL061506) |
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Corresponding Authors:
JIANG Liubing
E-mail: jlbnj@163.com
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| [1] |
皮亦鸣, 杨建宇, 付毓生, 等. 合成孔径雷达成像原理[M]. 成都: 电子科技大学出版社, 2007: 1-16.
|
|
PI Yiming, YANG Jianyu, FU Yu-sheng, et al. Synthetic Aperture Radar Imaging Principle[M]. Chengdu: University of Electronic Science and Technology of China Press, 2007: 1-16.
|
| [2] |
MONSERRAT O, CROSETTO M, and LUZI G. A review of ground-based SAR interferometry for deformation measurement[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2014, 93: 40-48. doi: 10.1016/j.isprsjprs. 2014.04.001.
|
| [3] |
LEVA D, NICO G, TARCHI D, et al. Temporal analysis of a landslide by means of a ground-based SAR interferometer[J]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41(4): 745-752. doi: 10.1109/TGRS.2003.808902.
|
| [4] |
HAKOBYAN A, MCGUIRE P, POWER D, et al. Applications and validation tests of ground-based coherent radar for deformation and vibration measurements in Canada's Atlantic region[C]. 2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE), Halifax, NS, 2015: 638-642. doi: 10.1109/CCECE. 2015.7129349.
|
| [5] |
LUO Y, SONG H, WANG R, et al. Arc FMCW SAR and applications in ground monitoring[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(9): 5989-5998. doi: 10.1109/TGRS.2014.2325905.
|
| [6] |
MAO C, LIU F, NI C, et al. GB-SAR deformation monitoring: Performance analysis and primary experimental results[C]. IET International Radar Conference 2013, Xi’an, 2013: 1-6. doi: 10.1049/cp.2013.0192.
|
| [7] |
TARCHI D, OLIVERI F, and SAMMARTINO P F. MIMO radar and ground-based SAR imaging systems: equivalent approaches for remote sensing[J]. IEEE Transactions on Geoscience and Remote Sensing, 2013, 51(1): 425-435. doi:10.1109/TGRS.2012.2199120.
|
| [8] |
王怀军, 黄春琳, 陆珉, 等. MIMO雷达反向投影成像算法[J]. 系统工程与电子技术, 2010, 32(8): 1567-1573. doi: 10.3969/ j.issn.1001-506X.2010.08.03.
|
|
WANG Huaijun, HUANG Chunlin, LU Min, et al. Back projection imaging algorithm for MIMO radar[J]. Journal of Systems Engineering and Electronics, 2010, 32(8): 1567-1573. doi: 10.3969/j.issn.1001-506X.2010.08.03.
|
| [9] |
王伟, 马跃华, 王咸鹏. 一种高运算效率的MIMO雷达BP成像算法[J] . 系统工程与电子技术, 2013, 35(10): 2080-2085. doi: 10.3969/j.issn.1001-506X.2013.10.11.
|
|
WANG Wei, MA Yuehua, and WANG Xianpeng. Highcomputation efficiency BP imaging algorithm for MIMO radar[J]. Journal of Systems Engineering and Electronics, 2013, 35(10): 2080-2085. doi: 10.3969/j.issn.1001-506X. 2013.10.11.
|
| [10] |
KLARE J and SAALMANN O. MIRA-CLE X: a new imaging MIMO-radar for multi-purpose applications[C]. 2010 European Radar Conference (EuRAD), Paris, 2010: 129-132.
|
| [11] |
SAMMARTINO P F, TARCHI D, and BAKER C J. MIMO radar topology: A systematic approach to the placement of the antennas[C]. 2011 International Conference on Electromagnetics in Advanced Applications (ICEAA), Torino, 2011: 114-117. doi: 10.1109/ICEAA.2011.6046337.
|
| [12] |
顾福飞, 池龙, 张群, 等. 基于压缩感知的稀疏阵列 MIMO 雷达成像方法[J]. 电子与信息学报, 2011, 33(10): 2452-2457. doi: 10.3724/SP.J.1146.2011.00287.
|
|
GU Fufei, CHI Long, ZHANG Qun, et al. An imaging method
|
|
for MIMO radar with sparse array based on compressed sensing[J]. Journal of Electronics & Information Technology, 2011, 33(10): 2452-2457. doi: 10.3724/SP.J.1146.2011.00287.
|
| [13] |
王怀军. MIMO 雷达成像算法研究[D]. [博士论文]. 国防科学技术大学, 2010: 39-50.
|
|
WANG Huaijun. MIMO radar imaging algorithm[D]. [Ph.D. dissertation], University of Defense Technology, 2010: 39-50.
|
| [14] |
YANG J, HUANG X, JIN T, et al. Synthetic aperture radar imaging using stepped frequency waveform[J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(5): 2026-2036. doi: 10.1109/TGRS.2011.2170176.
|
| [15] |
WU X F, WANG X S, and LU H Z. Motion feature extraction for stepped frequency radar based on Hough transform[J]. IET Radar, Sonar & Navigation, 2010, 4(1): 17-27. doi: 10.1049/iet-rsn. 2009.0100.
|
| [16] |
陈洁, 方广有, 李芳. 时域波束形成在超宽带穿墙成像雷达中的应用[J]. 电子与信息学报, 2008, 30(6): 1341-1344.
|
|
CHEN Jie, FANG Guangyou, and LI Fang. The application of Time domain beamforming to ultra-wideband through- wall imaging radar[J]. Journal of Electronics & Information Technology, 2008, 30(6): 1341-1344.
|
| [17] |
TANSER D J. Simulation of a slope stability radar for opencast mining[D]. [Master dissertation], Department of Electrical Engineering, University of Cape Town, 2003: 10-18.
|
| [18] |
隆华平. 利用地基干涉雷达IBIS-FL监测露天矿边坡形变研究[J]. 工程勘察, 2014, 42(11): 68-73.
|
|
LONG Huaping. Study on deformation monitoring of open pit slop by ground-based interferometric radar IBIS-FL[J]. Geotechnical Investigation & Surveying, 2014, 42(11): 68-73.
|
|
|
|
