摘要
提出了一种在含有动目标的SAR图像上直接进行动目标聚焦处理的方法。通过推导动目标在成像波数域的二维频谱形式,得到了对动目标进行模糊数估计和聚焦的频域处理函数。在图像域直接进行处理避免了成像点逆回到回波域校正距离走动的复杂过程,简化了算法复杂性,提高运算效率。最后通过仿真和实测数据处理验证了算法的有效性。
An image-domain focusing algorithm for moving targets in SAR images is proposed.By deducting the two-dimensional spectrum of the moving targets,the functions to estimate the fuzzy number and to focus the moving targets are obtained.The complex process of transferring the image back to the echo domain and correcting the range cell migration is no longer necessary.Therefore the algorithm complexity is simplified and the operational efficiency is improved.The validity of the proposed algorithm is demonstrated using simulated and real-data experiments in the end.
作者
杨泽民
李学仕
成志强
丁庆
YANG Ze-min;LI Xue-shi;CHENG Zhi-qiang;DING Qing(Science and Technology on Electronic Information Control Laboratory, Chengdu 610036, China)
出处
《电子信息对抗技术》
2018年第6期38-43,52,共7页
Electronic Information Warfare Technology
