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中文摘要：
由于空间的高度复杂性，双基地雷达系统中目标微动产生的微多普勒信息与单基地体制雷达有较大区别。双基地逆合成孔径雷达（ISAR）可以看做获得非协作目标图像的雷达成像工具。该文首先分析了双基地ISAR系统的2维分辨率，并提出了合多普勒带宽的概念来分析方位分辨率和它的空变性。然后，详细研究了双基地ISAR系统中旋转和振动所产生的微多普勒效应。基于双基地ISAR系统和单基地ISAR系统微多普勒效应的不同，该文提出了一种扩展Hough变换来提取目标的实际微动特征。最后，通过仿真实验验证了结论的正确性和有效性。
英文摘要：
Compared to the monostatic radar, bistatic radar has many special characteristics because of its spatial complexity. Bistatic Inverse Synthetic Aperture Radar （Bi-ISAR） can be employed as a radar imaging tool for obtaining non-cooperative target images. In this study, we first analyze the range and azimuth resolution of a Bi-ISAR system. To anMyze this azimuth resolution and its spatial-variety characteristic, a definition called con-Doppler bandwidth is introduced, which helps overcome the difficulty of the target＇s viewing angle diversity calculation. Then, a detailed investigation is conducted to study the micro-Doppler effect caused by the vibration and the rotation of the target in the Bi-ISAR system. By comparing the difference in the micro-Doppler effect between the Bi-ISAR system and the Mono-ISAR system, we modify the extended Hough transform to extract the real micro-motion features of the targets. Finally, we provide some simulation results to validate the theoretical derivation and to illustrate the effectiveness of the proposed method.
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同项目期刊论文
An Adaptive ISAR-Imaging-Considered Task Scheduling Algorithm for Multi-Function Phased Array Radars
Micro-Doppler features analysis and extraction of vibrating target in FMCW SAR based on slow time en
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