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요약정보
弧形阵列3D-SAR成像处理算法研究 / Research on Arc Array 3D-SAR Imaging Algorithm
Resource Type
Academic Journal
Authors
黄增树
;
孙进平
;
谭维贤
;
黄平平
;
乞耀龙
;
Huang Zengshu
;
Sun Jinping
;
Tan Weixian
;
Huang Pingping
;
Qi Yaolong
Source
信号处理 / Journal of Signal Processing
. 35(4):523-530
Subject
弧形阵列
合成孔径雷达
三维成像
波数域
Language
Chinese
ISSN
1003-0530
Online Access
Find it @ DONGA
초록
三维合成孔径雷达(3D-SAR)能够获取观测场景目标的三维分辨,解决传统二维合成孔径雷达的叠掩、阴影等问题.不同于现有的3D-SAR成像几何,本文设计了一种新的基于弧形曲面几何的三维合成孔径雷达系统模型.相比于现有的3 D-SAR成像系统,该系统能够利用弧形天线阵列实现高效的数据采集和宽视角三维成像.然后针对所设计的弧形阵列3D-SAR系统,本文提出了一种应用于调频连续波信号的波数域三维成像处理算法,通过波数域卷积及插值变换,避免了距离近似等产生的相位误差,从而实现对目标的精准聚焦.最后,通过进行计算机单点目标仿真与多目标仿真,并将仿真结果与后向投影算法的结果进行对比,验证了本文所设计系统模型的有效性及提出算法的良好成像性能.
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