Impact analysis of motion measurement error on array antenna SAR three dimensional imaging

被引：0
作者：
Ding, Zhen-Yu [1 ,2 ,3 ]
Tan, Wei-Xian [1 ,2 ]
Wang, Yan-Ping [1 ,2 ]
Hong, Wen [1 ,2 ]
Wu, Yi-Rong [1 ,2 ]
机构：
[1] Institute of Electronics, Chinese Academy of Sciences, Beijing
[2] Key Laboratory of Science and Technology on Microwave Imaging, Beijing
[3] University of Chinese Academy of Sciences, Beijing
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2015年 / 37卷 / 06期
关键词：
Array antenna; Error analysis; Measurement error; SAR; Three dimensional imaging;
D O I：
10.11999/JEIT141106
中图分类号：
学科分类号：
摘要：
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. ©, 2015, Science Press. All right reserved.
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页码：1424 / 1430
页数：6
相关论文
共 16 条
  • [1] Gierull C.H., On a concept for an airborne downward-looking imaging radar, International Journal of Electronics and Communications, 53, 6, pp. 295-304, (1999)
  • [2] Reigber A., Moreira A., First demonstration of airborne SAR tomography using multibaseline L-band data, IEEE Transactions on Geoscience and Remote Sensing, 38, 5, pp. 2142-2152, (2000)
  • [3] Bao Z., Xing M.-D., Wang T., Radar Imaging Technique, pp. 200-206, (2005)
  • [4] Du L., Study on model, algorithm and experiment for downward-looking synthetic aperture radar threedimensional imaging based on linear array antennas, (2010)
  • [5] Hou Y.-N., Li D.-J., Hong W., The thinned array time division multiple phase center aperture synthesis and application, Proceedings of the IEEE International Geoscience and Remote Sensing Symposium 2008 (IGARSS 2008), pp. 25-28, (2008)
  • [6] Peng X.-M., Wang Y.-P., Tan W.-X., Et al., Airborne downward-looking MIMO 3D-SAR imaging algorithm based on cross-track thinned array, Journal of Electronics & Information Technology, 34, 4, pp. 943-949, (2012)
  • [7] Hou Y.-N., Study of radar imaging technology based on sparse array antenna, (2010)
  • [8] Nouvel J.F., Ruault du Plessis O., Svedin J., Et al., Along track interferometry on rhone river, Proceedings of the 7th European Conference on Synthetic Aperture Radar, pp. 495-497, (2008)
  • [9] Peng X.-M., Wang Y.-P., Tan W.-X., Et al., Downward looking 3D SAR based on uniform virtual phase centre restricted symmetrical distributed thinned array, Proceedings of the 2011 IEEE CIE International Conference on Radar,, 1, pp. 380-383, (2011)
  • [10] Yu C.-Y., Xie Y.-N., Zhao H.-L., Et al., Airborne downward-looking MIMO 3D-SAR imaging properties based on the new array configuration, Electronic Measurement Technology, 37, 2, pp. 64-69, (2014)
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