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| 中高轨道SAR信号建模和成像方法研究 | |
| 引用本文： | 黄丽佳,胡东辉,丁赤飚. 中高轨道SAR信号建模和成像方法研究[J]. 国外电子测量技术, 2011, 30(6): 21-27,50 |
| 作者姓名： | 黄丽佳 胡东辉 丁赤飚 |
| 作者单位： | 1. 中国科学院电子学研究所,北京100080;中国科学院空间信息处理与应用系统技术重点实验室,北京100080;中国科学院研究生院,北京100039 2. 中国科学院电子学研究所,北京100080;中国科学院空间信息处理与应用系统技术重点实验室,北京100080 3. 中国科学院电子学研究所,北京,100080 |
| 基金项目： | 中高轨道SAR系统建模及成像处理研究 |
| 摘 要： | 中高轨道合成孔径雷达具备潜在的高分辨宽测绘带能力,在国防和经济建设中具有重要的应用前景.针对传统星载SAR信号模型在中高轨道SAR建模中的缺陷和不足,作者提出了改进斜视距离模型和多项式逼近距离模型两种中高轨道SAR信号建模方法.本文在阐述了距离模型参数估计方法和估计精度的基础上,建立了简洁精确的二维频谱解析表达式,并发... |
| 关 键 词： | 信号建模 中高轨道 合成孔径雷达 雷达信号处理 |
Study on signal modeling and imaging approach for medium-earth-orbit SAR |
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| Huang Lijia,Hu Donghui,Ding Chibiao. Study on signal modeling and imaging approach for medium-earth-orbit SAR[J]. Foreign Electronic Measurement Technology, 2011, 30(6): 21-27,50 | |
| Authors: | Huang Lijia Hu Donghui Ding Chibiao |
| Affiliation: | 1.Institute of Electronics Chinese Academy of Sciences,Beijing 100080,China;2.Key Lab.of Spatial InformationProcessing and Application System Technology,Chinese Academy of Sciences,Beijing 100080,China;3.Graduate University of the Chinese Academy of Sciences,Beijing 100039,China) |
| Abstract: | Since medium-earth-orbit SAR is capable of obverving with high resolution and wide swath,it will be helpful for national defence and development.Two novel rang for medium-earth-orbit SAR are introduced to deal with the limitation and insufficiency of the conventional signal modeling approch：the advanced hyperbolic and the polynomial fitting range models.The estimation technique and the estimation accuracy of the range model parameters are discussed,and the analytical apectra are deduced out consiely and precisely,as well as the range doppler algorithm is develpoed.Simulation results verify that the approaches proposed in this paper can satsfy the requirements of signal modeling and imaging for medium-earth-orbit SAR. |
| Keywords: | signal modeling medium-earth-orbit synthetic aperture radar radar sinal processing |
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