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| Impact Analysis of Motion Measurement Error on Array Antenna SAR Three Dimensional Imaging |
| Ding Zhen-yu①②③ Tan Wei-xian①② Wang Yan-ping①② Hong Wen①② Wu Yi-rong①② |
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
②(Key Laboratory of Science and Technology on Microwave Imaging, Beijing 100190, China)
③(University of Chinese Academy of Sciences, Beijing 100190, China) |
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Abstract The array antenna SAR is able to realize the three dimensional imaging. In order to improve the imaging quality, the measurement equipment is adopted to acquire the motion information of the array antenna’s platform for the motion compensation. However, the measurement error may impact the quality of compensation and imaging. Therefore analysis of the impact is indispensable. This paper establishes the imaging model and the measurement error analysis model, analyses the impact on phase error from the aspect of position and angle measurement error respectively, compares the impact of measurement error in the different directions, analyses the impact on imaging index by the simulation, and introduces the idea of angle-error-array-length-ratio to quantify the impact of angle error. The conclusion that the measurement error in the height and roll angle has the biggest impact is proposed and the error tolerance in certain conditions is given at last, which provides the theoretical guidance and reference for the choice and design of the measurement equipment and the motion compensation method.
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Received: 21 August 2014
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Corresponding Authors:
Ding Zhen-yu
E-mail: dingzhenyusky@sina.cn
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| [1] |
Gierull C H. On a concept for an airborne downward-looking imaging radar[J]. International Journal of Electronics and Communications, 1999, 53(6): 295-304.
|
| [2] |
Reigber A and Moreira A. First demonstration of airborne SAR tomography using multibaseline L-band data[J]. IEEE Transactions on Geoscience and Remote Sensing, 2000, 38(5): 2142-2152.
|
| [3] |
保铮, 刑孟道, 王彤. 雷达成像技术[M]. 北京: 电子工业出版社, 2005: 200-206.
|
|
Bao Zheng, Xing Meng-dao, and Wang Tong. Radar Imaging Technique[M]. Beijing: Publishing House of Electronics Industry, 2005: 200-206.
|
| [4] |
杜磊. 阵列天线下视合成孔径雷达三维成像模型、方法与实验研究[D]. [博士论文]. 北京: 中国科学院电子学研究所, 2010.
|
|
Du Lei. Study on model, algorithm and experiment for downward-looking synthetic aperture radar three- dimensional imaging based on linear array antennas[D]. [Ph.D. dissertation], Beijing: Institute of Electronics, Chinese Academy of Sciences, 2010.
|
| [5] |
Hou Ying-ni, Li Dao-jing, and Hong Wen. The thinned array time division multiple phase center aperture synthesis and application[C]. Proceedings of the IEEE International Geoscience and Remote Sensing Symposium 2008 (IGARSS 2008), Boston, USA, 2008: 25-28.
|
| [6] |
彭学明, 王彦平, 谭维贤, 等. 基于跨航向稀疏阵列的机载下视MIMO 3D-SAR 3维成像算法[J]. 电子与信息学报, 2012, 34(4): 943-949.
|
|
Peng Xue-ming, Wang Yan-ping, Tan Wei-xian, et al.. Airborne downward-looking MIMO 3D-SAR imaging algorithm based on cross-track thinned array[J]. Journal of Electronics & Information Technology, 2012, 34(4): 943-949.
|
| [7] |
侯颖妮. 基于稀疏阵列天线的雷达成像技术研究[D]. [博士论文], 北京: 中国科学院电子学研究所, 2010.
|
|
Hou Ying-ni. Study of radar imaging technology based on sparse array antenna[D]. [Ph.D. dissertation], Beijing: Institute of Electronics, Chinese Academy of Sciences, 2010.
|
| [8] |
Nouvel J F, Ruault du Plessis O, Svedin J, et al.. Along track interferometry on rhone river[C]. Proceedings of the 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, Germany, 2008: 495-497.
|
| [9] |
Peng Xue-ming, Wang Yan-ping, Tan Wei-xian, et al.. Downward looking 3D SAR based on uniform virtual phase centre restricted symmetrical distributed thinned array[C]. Proceedings of the 2011 IEEE CIE International Conference on Radar, Xi’an, China, 2011(l): 380-383.
|
| [10] |
于春艳, 谢亚楠, 赵海兰, 等. 基于新型阵列配置的机载MIMO-SAR下视三维成像性能研究[J]. 电子测量技术, 2014, 37(2): 64-69.
|
|
Yu Chun-yan, Xie Ya-nan, Zhao Hai-lan, et al.. Airborne downward-looking MIMO 3D-SAR imaging properties based on the new array configuration[J]. Electronic Measurement Technology, 2014, 37(2): 64-69.
|
| [11] |
Wang Jie, Liang Xing-dong, Ding Chi-biao, et al.. An improved OFDM chirp waveform used for MIMO SAR system[J]. SCIENCE CHINA Information Sciences, 2014, 57(6): 65-73.
|
| [12] |
张清娟, 李道京, 李烈辰. 连续场景的稀疏阵列SAR侧视三维成像研究[J]. 电子与信息学报, 2013, 35(5): 1097-1102.
|
|
Zhang Qing-juan, Li Dao-jing, and Li Lie-chen. Research on continuous scene side-looking 3D imaging based on sparse array[J]. Journal of Electronics & Information Technology, 2013, 35(5): 1097-1102.
|
| [13] |
彭文杰. 基于压缩感知的阵列SAR三维成像方法研究[D]. [硕士论文], 成都: 电子科技大学, 2013.
|
|
Peng Wen-jie. Array SAR 3D imaging method based on compressed sensing[D]. [Master dissertation], Chengdu: University of Electronic Science and Technology of China, 2013.
|
| [14] |
韦顺军. 线阵三维合成孔径雷达稀疏成像技术研究[D]. [博士论文], 成都: 电子科技大学, 2013.
|
|
Wei Shun-jun. Research on linear array three-dimensional synthetic aperture radar sparse imaging technology[D]. [Ph.D. dissertation], Chengdu: University of Electronic Science and Technology of China, 2013.
|
| [15] |
杨泽民, 孙光才, 邢孟道, 等. 基于多通道联合自聚焦技术的机载三维SAR运动补偿[J]. 电子与信息学报, 2012, 34(7): 1581-1588.
|
|
Yang Ze-min, Sun Guang-cai, Xing Meng-dao, et al.. Motion compensation for airborne 3-D SAR based on joint multi-channel auto-focusing technology[J]. Journal of Electronics & Information Technology, 2012, 34(7): 1581-1588.
|
| [16] |
朱海洋, 洪峻, 明峰. 相位中心偏差对机载阵列天线下视3D-SAR成像影响分析[J]. 电子与信息学报, 2012, 34(4): 910-916.
|
|
Zhu Hai-yang, Hong Jun, and Ming Feng. Analysis of impact of phase center variations in linear array antenna downward- looking 3D-SAR imaging[J]. Journal of Electronics & Information Technology, 2012, 34(4): 910-916.
|
|
|
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