| 一种新的星载SAR图像定位方法的研究 |
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| 引用本文： | 李立钢, 尤红建, 彭海良, 吴一戎, 刘波, 周强. 一种新的星载SAR图像定位方法的研究[J]. 电子与信息学报, 2007, 29(6): 1441-1444. doi: 10.3724/SP.J.1146.2005.01440 |
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| 作者姓名： | 李立钢 尤红建 彭海良 吴一戎 刘波 周强 |
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| 作者单位： | 中国科学院电子学研究所微波成像技术国家重点实验室,北京,100080;中国科学院西安光学精密机械研究所,西安,710068;中国科学院研究生院,北京,100039;中国科学院电子学研究所微波成像技术国家重点实验室,北京,100080;中国科学院西安光学精密机械研究所,西安,710068;中国科学院空间中心,北京,100080;中国科学院电子学研究所微波成像技术国家重点实验室,北京,100080;中国科学院研究生院,北京,100039 |
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| 摘 要： | 该文应用摄影测量理论，将星载SAR图像近似看作一个画幅式投影传感器获取的等效影像，从而对星载 SAR共线方程进行改进，提出了一种新的定位模型。文中选用一景北京地区RadarSat影像进行实验，结果表明，该模型表达简单，解算稳定，不需要已知轨道信息和成像参数且定位精度保持在像素级范围之内。
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| 关 键 词： | 星载SAR 定位 画幅式 |
| 文章编号： | 1009-5896（2007）06-1441-04 |
| 收稿时间： | 2005-11-09 |
| 修稿时间： | 2005-11-092006-04-20 |
A New Method to Locate Satellite SAR Imagery |
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| Li Li-gang, You Hong-jian, Peng Hai-liang, Wu Yi-rong, Liu Bo, Zhou Qiang. A New Method to Locate Satellite SAR Imagery[J]. Journal of Electronics & Information Technology, 2007, 29(6): 1441-1444. doi: 10.3724/SP.J.1146.2005.01440 |
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| Authors: | Li Li-gang You Hong-jian Peng Hai-liang Wu Yi-rong Liu Bo Zhou Qiang |
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| Affiliation: | National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China; Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710068, China; Graduate School of Chinese Academy of Science, Beijing 100039, China; Center for Sapce Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | In this paper, the satellite SAR imagery is regarded as an image which is acquired from the frame projection sensor approximately based on photogrametry theory. The satellite SAR collinearity equation is revised and a new location model is proposed. As an example, the RadarSat Imagery is tested. Experiment result demonstrates the new model formulation is simple and the resolution is stable without any orbit ephemeris and imaging parameters, and also location accuracy reaches pixels. |
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| Keywords: | Satellite SAR Location Frame projection |
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