俯冲加速运动状态下SAR信号分析及运动补偿
doi: 10.3724/SP.J.1146.2006.01645
Signal Analysis and Motion Compensation of SAR Data with Diving Acceleration
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摘要: 该文针对SAR在俯冲加速运动状态下的运动特性，根据SAR的空间几何结构，详细分析了相对地面垂直和水平方向加速运动对回波信号的影响并根据相应的多普勒参数构造合适的方位向匹配滤波函数及相位误差校正因子进行运动补偿，计算机仿真结果验证了补偿方法的有效性。
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关键词:
- 合成孔径雷达; 俯冲加速运动; 运动补偿
Abstract: This paper concerns the issue of signal characteristic of side-looking SAR during its diving flight. The geometric and target range expression are built and Doppler parameter variation with operation time is analysed. The corresponding azimuth match filtering function and phase error correction factor based on Doppler parameter are provided for motion compensation. The validity and feasibility of the method is demonstrated by the simulation. -
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