3D ISAR for an Along-Track Airborne Radar
3D ISAR for an Along-Track Airborne Radar
复制标题
用于沿轨机载雷达的 3D ISAR
DOI：
10.1109/taes.2021.3136830
复制
发表时间：
2022
影响因子：
4.4
通讯作者：
T. Cao
中科院分区：
文献类型：
--
作者：
C. Pui;Brian Ng;L. Rosenberg;T. Cao
在机载海事雷达中，逆合成孔径雷达（ISAR）用于对非合作目标进行成像和分类。在本文中，我们研究了 3D-ISAR 作为替代表示，它可以通过自动从雷达数据中提取关键特征（例如目标的长度、宽度和高度）来改善最终的目标分类。该技术的工作原理是使用多个 ISAR 图像的测量值来估计目标散射体的位置。此前，这一点已通过利用目标时间运动的单个接收通道或利用沿轨道和跨轨道方向的相位差的多通道双基线干涉系统来实现。在本文中，我们使用适用于机载海事雷达系统的单个沿航迹基线结合了这两种技术的各个方面。
In an airborne maritime radar, inverse synthetic aperture radar (ISAR) is used to image and classify non-cooperative targets. In this article, we investigate a 3D-ISAR as an alternative representation that can potentially improve the final target classification by automatically extracting key features from the radar data, such as the length, width, and height of a target. The technique works by estimating the target scatterers’ positions using measurements from multiple ISAR images. This has previously been achieved using a single receive channel that exploits the temporal motion of the target or with a multichannel dual-baseline interferometric system that uses the phase differences in both the along- and across-track directions. In this article, we combine aspects of these two techniques using a single along-track baseline suitable for airborne maritime radar systems.