Position correction of moving targets in SAR imagery
Position correction of moving targets in SAR imagery
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DOI：
10.1117/12.511213
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发表时间：
2004-01
期刊：
影响因子：
--
通讯作者：
S. Axelsson
中科院分区：
文献类型：
--
作者：
S. Axelsson
标准 SAR 处理方法基于静止场景的假设。如果目标在移动，它们在 SAR 图像中的位置会发生方位角转换，并且可能会发生散焦。本文讨论了单脉冲、DPCA等运动目标的检测、成像及其真实位置估计的方法。实验结果显示了使用从 Σ 和 Δ 通道导出的两个 SAR 图像的单脉冲比进行位置校正的结果。
Standard SAR-processing methods are based upon the assumption of a scene at rest. If targets are moving, their positions in the SAR-image are translated in azimuth and defocusing may occur. In this paper, some methods for the detection and imaging of moving targets and the estimation of their real positions are discussed, such as monopulse and DPCA. Experimental results are shown on position correction using the monopulse ratio of two SAR-imagery derived from the Σ and Δ-channels.