一种改进的ISAR运动补偿方法  

An Improved Method of Motion Compensation for ISAR

作　　者：庞怡杰[1] 王国林[1] 许荣庆[1] 

机构地区：[1]哈尔滨工业大学电子工程技术研究所

出　　处：《系统工程与电子技术》1998年第6期39-43,共5页Systems Engineering and Electronics

摘　　要：本文针对ＩＳＡＲ外场实验数据，提出一套改进的运动补偿方法。首先用回波动态范围压缩的积累互相关方法进行补偿，再用相位梯度自聚焦算法进一步提高相位对准的精度。用这种方法对实验ＩＳＡＲ外场数据进行处理，得到了高质量的成像结果。This paper presents an improved method of motion compensation for ISAR. After the compensation based on the dynamic range compression and accumulated cross correlation, phase gradient autofocus(PGA) is used to improve the accuracy of phase compensation. The high quality images have been obtained for the data acquired from outside experiments.

关 键 词：合成孔径雷达 运动补偿系统 图像识别 ISAR雷达 

分 类 号：TN958[电子电信—信号与信息处理] TN957.52[电子电信—信息与通信工程]