【摘要】 基于正侧视合成孔径雷达对点目标的回波冲激响应模型 ,运用三步法在原始回波信号直接对应的时域和频域中详细地分析和推导了Chirp -Scaling算法中的方位向傅立叶变换 ,给出了泰勒级数的展开技巧并找出了算法中的重要误差源。最后 ,对SAR各种常见扫描模式下的方位向傅立叶变换进行了简要的分析更多还原

【Abstract】 Based on the impulse response model of a point target of a side - looking SAR and by using the Tree-step method with directly processing the original echoes in their corresponding time - domain and frequency - domain, detail analysis and induction of the Fourier transform of azimuth in chirp - scaling algorithm are described with the finding of error source of the algorithm and with the providing of the expansion technique of the Tailor series. The paper has a significant effect on the steps analyzed next.更多还原