基于顺轨-交轨InSAR技术的运动舰船目标三维成像  

Three-dimensional imaging of moving ships with 3D motion based on AT-CT InSAR

作　　者：汤立波[1] 李道京[2] 洪文[2] 吴一戎[2] 丁赤飚[2] 

机构地区：[1]信息产业部电信研究院通信标准研究所,北京100045 [2]中国科学院电子学研究所微波成像技术国家重点实验室,北京100080

出　　处：《系统工程与电子技术》2008年第9期1669-1673,共5页Systems Engineering and Electronics

摘　　要：利用顺轨和交轨干涉SAR技术,研究了海面运动舰船目标三维成像问题。完整地介绍了距离徙动校正和二维图像配准方法,提出了将时频分析成像方法和干涉技术相结合的处理思路,利用时频分析方法可以获得三个天线在任意方位时间tk处的目标图像,将任意方位时刻tk处的二维复图像进行干涉处理,由干涉相位计算运动目标散射点的三维空间坐标,实现运动舰船目标三维成像。运动舰船目标的三维图像仿真处理结果,表明了该方法的有效性。The problem of moving ship 3D imaging is investigated based on along track-cross track InSAR technology with three antennas. The range migration correction and image registration are introduced integrally. A new method of time-frequency analysis associate with interferometric processing technology is presented. The three images of the three antennas can be obtained by time-frequency analysis method in any azimuth time tk. Then the interferometric processing is applied to the three images. The scatterers spatial position in ship target can be extracted from interferometric phase. Three-dimensional imaging of moving ship targets can be achieved. The processing results of simulated data show the effectiveness of the presented method.

关 键 词：合成孔径雷达 干涉合成孔径雷达 运动目标成像 运动舰船 三维成像 

分 类 号：TN957[电子电信—信号与信息处理]