| 一种改进的二端口杂波抑制干涉仪 |
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| 引用本文： | 叶少华,朱兆达,朱岱寅. 一种改进的二端口杂波抑制干涉仪[J]. 系统工程与电子技术, 2002, 24(8): 71-74 |
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| 作者姓名： | 叶少华 朱兆达 朱岱寅 |
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| 作者单位： | 南京航空航天大学电子工程系,江苏,南京,210016 |
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| 基金项目： | 航空科学基金资助课题 (0 0F5 2 0 5 7) |
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| 摘 要： | 分析了二端口杂波抑制干涉仪的工作原理 ,讨论了系统中的误差及噪声对主杂波抑制的影响。在此基础上 ,对二端口杂波抑制干涉仪方案中最关键的对消因作做了改进。分析和仿真结果表明 :经改进的二端口杂波抑制 ,干涉仪对误差及噪声的敏感程度显著下降 ,能够稳健地抑制主杂波 ,进而使检测淹没在主瓣杂波中的慢动军事目标成为可能。
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| 关 键 词： | 二端口杂波抑制干涉仪 杂波对消 合成孔径雷达 地面慢动目标指示 |
| 文章编号： | 1001-506X(2002)08-0071-04 |
| 修稿时间： | 2001-07-10 |
An Improved Two-Port Clutter Suppression Interferometer |
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| YE Shao-hua,ZHU Zhao-da,ZHU Dai-yin. An Improved Two-Port Clutter Suppression Interferometer[J]. System Engineering and Electronics, 2002, 24(8): 71-74 |
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| Authors: | YE Shao-hua ZHU Zhao-da ZHU Dai-yin |
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| Abstract: | The principle of two port clutter suppression interferometer is analyzed. The influence of system errors and noise on the capability for suppressing the main lobe clutter is also discussed. The modification on the most critical weighting factor of this two port interferometer is proposed. Theoretical analyses and simulation results show that this improved two port interferometer is insensitive to system errors or noise and is robust in clutter cancellation, thus allowing for the detection of slowly moving military targets which are otherwise masked by main lobe clutter. |
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| Keywords: | Two port clutter suppression interferometer Clutter cancellation Synthetic aperture radar Ground moving target indicator |
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