| 极坐标格式算法及其在条带SAR成像中的应用 |
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| 引用本文： | 肖靖,朱岱寅,朱兆达.极坐标格式算法及其在条带SAR成像中的应用[J].雷达科学与技术,2003,1(4):228-231. |
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| 作者姓名： | 肖靖 朱岱寅 朱兆达 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,江苏南京,210016 |
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| 摘 要： | 极坐标格式算法(PFA)是一种典型的聚束SAR成像算法。本文从信号相位历程的角度阐述了PFA成像的基本原理，并基于对条带SAR和聚束SAR两种模式的比较，利用二者之间的内在联系，将条带SAR的原始数据进行分块处理并将分块数据等效成为聚束模式数据，然后用PFA对等效数据进行聚束成像。对外场数据的处理证实了理论分析的正确性和本文所提出方法的可行性。
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| 关 键 词： | 极坐标格式算法 条带SAR 聚束SAR 成像算法 合成孔径雷达 信号模型 |
| 文章编号： | 1672-2337(2003)04-0228-04 |
Polar Format Algorithm and Its Application in Image Formation of Stripmap SAR |
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| XIAO Jing,ZHU Dai-yin,ZHU Zhao da College of Information Science and Technology,Nanjing University of Aeronautics,and Astronautics,Nanjing ,China.Polar Format Algorithm and Its Application in Image Formation of Stripmap SAR[J].Radar Science and Technology,2003,1(4):228-231. |
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| Authors: | XIAO Jing ZHU Dai-yin ZHU Zhao da College of Information Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing China |
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| Affiliation: | XIAO Jing,ZHU Dai-yin,ZHU Zhao da College of Information Science and Technology,Nanjing University of Aeronautics,and Astronautics,Nanjing 210016,China |
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| Abstract: | Polar format algorithm(PFA) is a typical image formation algorithm used in spotlight SAR.This paper elaborates on the basic image formation theory of PFA. And based on the comparison of stripmap SAR and spotlight SAR, the paper divides the stripmap SAR raw data into segments and converts theminto equivalent spotlight data according to the inherent relation between the two SAR modes. Then theequivalent data are respectively processed through PFA to form the spotlight SAR image. The processingresults of live data verify the theoretical analysis and the method proposed by this paper. |
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| Keywords: | polar format algorithm (PFA) spotlight SAR stripmap SAR |
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