空间目标姿态变化判别对于空间攻防作战时密切掌握敌方目标意图具有重要意义。文中研究了基于逆合成孔径雷达(ISAR)像的空间目标姿态变化判别方法,即判断空间目标处于姿态稳定状态还是姿态变化状态。首先,推导了基于ISAR像进行目标姿态变化判别的基本原理;然后,基于图像处理和图像匹配技术提出了ISAR像旋转角度提取方法和目标姿态变化判别方法;最后,利用雷达实测数据验证了文中方法的有效性。

The discrimination of the attitude change of space targets is of great significance for precise control of hostile targets during space attack and defense operations. In this paper, the method of determine the attitude change of space targets based on inverse synthetic aperture radar (ISAR) image is studied, which is to discriminate whether the attitude state of space targets are steady or changing. Firstly, the basic principle of target attitude change based on ISAR image is derived. Then, the ISAR image rotation angle discrimination method is proposed based on image processing and matching technology. Finally, the effectiveness of the proposed method is verified by radar measured data.

TN957