| 非正弦波SAR的方位向分辨力 |
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| 引用本文： | 范玉芳,梁甸农.非正弦波SAR的方位向分辨力[J].国防科技大学学报,2000,22(3):11-15. |
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| 作者姓名： | 范玉芳 梁甸农 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家部委基金资助项目! (7 5 3 2 ) |
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| 摘 要： | 为研究非正弦波SAR的方位向分辨力 ,从波束形成的角度分析了非正弦波SAR的方位向聚焦原理 ,导出了基于矩形脉冲和高斯脉冲的合成孔径天线阵列方向图表达式 ,并与常规窄带SAR进行比较 ,指出影响非正弦波SAR方位向分辨力的主要因素为合成孔径长度和信号带宽 ,而与信号载频无关。
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| 关 键 词： | 非正弦波信号 合成孔径雷达 方位向分辨力 |
| 收稿时间： | 1999/11/1 0:00:00 |
| 修稿时间： | 1999-11-01 |
Research on the Cross-Range Resolution of Synthetic-Aperture Radar Based on Nonsinusoidal Waves |
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| FAN Yufang and LIANG Diannong.Research on the Cross-Range Resolution of Synthetic-Aperture Radar Based on Nonsinusoidal Waves[J].Journal of National University of Defense Technology,2000,22(3):11-15. |
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| Authors: | FAN Yufang and LIANG Diannong |
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| Abstract: | From the angle of a beam forming, the cross range focusing principle of the synthetic aperture radar based on nonsinusoidal waves is studied. The expressions of antenna pattern for both rectangular signal and Gaussian signal are presented. Compared with the conventional narrow bandwidth SAR whose cross rang resolution is determined by the carrier frequency, the cross range resolution of the nonsinusoidal SAR is affected by the signal bandwidth. |
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| Keywords: | nonsinusoidal wave synthetic aperture radar cross range resolution |
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