| 摘要: |
| 针对雷达平台在俯冲条件下的SAR成像几何关系及成像原理，分析了俯冲条件下斜
视SAR在斜平面内的分辨力，根据几何关系给出了从斜平面转换到地面的斜地转换系数，最
后推导了俯冲斜视段的地面方位向和距离向的分辨力数学表达式。在此基础上对影响分辨力
的主要因素进行了分析，分析结果表明，该成像分辨力数学模型不仅适合俯冲阶段，也适合
平飞阶段，对工程应用具有一定参考价值。 |
| 关键词: 合成孔径雷达 俯冲斜视SAR 斜地转换系数 斜平面分辨力 地距分
辨力 |
| DOI： |
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| 基金项目: |
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| Analysis of squinted-looking SAR imaging resolution in diving condition |
| CHANG Jun,LIU Yu-wen,REN Pei-hong,YANG Yong |
| () |
| Abstract: |
| According to the SAR imaging geometry and the imaging principle of the rad
ar platform in diving conditions,the squint plane resolution under the condition
of diving mode is analysed.The conversion factor from the squint pla
ne to ground-plane is provided according to the geometric relationship. Finally,
the ground azimuth and range resolution mathematical expressions are deduced in
diving condition. On this base,the main factors that affect resolution are
analysed and the result shows the mathematical model is not only suitable for d
iving phase imaging resolution but also for level flight phase. It has a cert
ain reference value for engineering applications. |
| Key words: SAR dive squinted looking SAR transform coefficient from the
squint plane to ground squinted plane resolution range resolution |
