| 一种基于正弦模型的干涉SAR射频干扰抑制算法 |
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| 引用本文： | 韩松涛,向茂生,汪丙南.一种基于正弦模型的干涉SAR射频干扰抑制算法[J].遥感技术与应用,2009,24(6):818-821. |
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| 作者姓名： | 韩松涛 向茂生 汪丙南 |
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| 作者单位： | 1.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 100190； ;
2.中国科学院研究生院,北京 100049 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家重点基础研究发展规划(973计划) |
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| 摘 要： | P波段电磁波谱与多种通信、无线电频带混叠,这些应用会对P波段干涉合成孔径雷达（Interferometric Synthetic Aperture Radar,InSAR）产生射频干扰（Radio Frequency Interference,RFI）。针对P波段InSAR系统射频干扰抑制问题,提出相位保持的抑制算法,算法基于正弦参数模型,采用阈值检测、迭代相参的处理技术,在抑制射频干扰对图像聚焦质量影响的同时保持回波数据的相位信息,该方法尤其适用于P波段InSAR系统。通过对仿真的机载干涉SAR数据进行处理,对比验证了算法的高效性。
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| 关 键 词： | 干涉合成孔径雷达 射频干扰 正弦参数模型 相位保持 |
An Approach Based on Sinusoidal Model for RFI Suppression in InSAR System |
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| HAN Song-tao,XIANG Mao-sheng,WANG Bing-nan.An Approach Based on Sinusoidal Model for RFI Suppression in InSAR System[J].Remote Sensing Technology and Application,2009,24(6):818-821. |
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| Authors: | HAN Song-tao XIANG Mao-sheng WANG Bing-nan |
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| Affiliation: | 1.The National Key Laboratory of Microwave Imaging Technology,Institute of Electronics, Chinese Academy of Sciences,Beijing 100190,China;
2.Graduate School of Chinese Academy of Sciences,Beijing 100049,China;
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| Abstract: | The spectrum of P-band is heavily used for commercial communication, radio broadcast and so on. So there will be Radio Frequency Interference (RFI) in received signals. To resolve the problem of RFI suppression,an approach which can preserve phase information is presented. It is based on sinusoidal parametric model and adopts threshold detection and iterative strategy. The approach can both suppress RFI and preserve phase information which is especially important for InSAR system. Results using simulation data shows high-performance of the algorithm. |
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| Keywords: | InSAR RFI Sinusoidal parametric model Phase preserving |
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