论文部分内容阅读
逆合成孔径雷达(ISAR)对远距离运动目标成象是利用目标相对于雷达的旋转来获得横向高分辨率的。通常目标运动不仅包含旋转运动还伴随着不需要的平移运动。在成象前必须将这种平移运动补偿掉。本文将对这一补偿的精度要求给出较详尽的考虑和分析结果。在此基础上提出一种新的运动补偿方案,这一方案采用跟踪整个目标而不是目标上的某一特殊散射点来做运动补偿的。本文所给出的一些仿真实验结果表明,所提出的运动补偿方案是有效的、可行的。
Inverted Synthetic Aperture Radar (ISAR) imaging of long-range moving targets is the use of the rotation of the target with respect to the radar to obtain a horizontal high-resolution image. Usually the target movement includes not only the rotational movement but also the unwanted translational movement. This translation must be compensated for before imaging. This article will give a more detailed consideration and analysis of the accuracy requirements of this compensation. On this basis, a new motion compensation scheme is proposed, which uses motion compensation to track the whole target instead of a special scattering point on the target. Some simulation results given in this paper show that the proposed motion compensation scheme is effective and feasible.