| 频率源稳定性对双基地SAR的分辨率影响 |
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| 引用本文： | 况凌,沈晓峰,杨万麟.频率源稳定性对双基地SAR的分辨率影响[J].电子科技大学学报(社会科学版),2009(2). |
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| 作者姓名： | 况凌 沈晓峰 杨万麟 |
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| 作者单位： | 电子科技大学电子工程学院; |
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| 摘 要： | 分析了高稳定独立频率源中随机起伏对双基地SAR分辨率的影响,确定了在随机起伏中,高斯函数可以作为最优加权函数以获得最佳均方根分辨率,并推导了最佳均方根分辨率的闭式解表达式。结果表明,该表达式能够快速准确地估计双基地SAR的系统分辨率,通过分辨率估计系统性能,并对系统的设计提供可靠的依据。
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| 关 键 词： | 双基地SAR 相位同步 频率源随机起伏 均方根分辨率 |
Influence of Frequency Stability on Bistatic SAR Resolution |
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| KUANG Ling,SHEN Xiao-feng, YANG Wan-lin.Influence of Frequency Stability on Bistatic SAR Resolution[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2009(2). |
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| Authors: | KUANG Ling SHEN Xiao-feng YANG Wan-lin |
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| Institution: | School of Electronic Engineering;University of Electronic Science and Technology Chengdu 610054 |
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| Abstract: | The analysis of the influence of random frequency fluctuation on bistatic SAR resolution is presented and shows that Gaussian function can be used as optimum weighting function to get the best achievable root mean square resolution. The closed-form result of the best achievable root mean square resolution is given. The results of simulation show that the closed-form expression can evaluate bistatic SAR resolution accurately and provide a basis for practical system design. |
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| Keywords: | bisatic SAR phase synchronization random frequency fluctuation root mean square resolution |
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