High resolution spaceborne SAR implementation method based on multiple phase centres antenna
-
摘要: 对基于多通道天线实现高分辨率星载SAR的方法进行了深入研究,建立了三通道天线SAR的回波信号模型,提出了一种回波处理方式,将单发三收模式下的回波数据转变为传统的单发单收模式下的回波数据,可用常规条带式成像方法进行成像处理.对采用多通道天线实现高分辨率星载SAR涉及到的脉冲重复频率PRF偏离问题进行了深入分析和研究,推导出PRF偏离造成的虚假目标的理论位置和虚假目标与真实目标的峰值功率比值,计算机仿真试验证明了上述内容的有效性.Abstract: An implementation method of high resolution spaceborne SAR based on multiple phase centres(MPC) antenna was studied, especially to the tri-phase centers antenna, as can effectively resolve the impact of resolution and swath extension. The echo signal model was proposed, and a method of processing the echo signal was discussed. In this method, the echo was transformed to the standard echo as usual one phase central antenna, which can be processed by traditional strip-mode imaging algorithm. The PRF departure’s influence on imaging performance was also deeply studied and the false target’s position and relative magnitude was given. The result of computer simulation proves the validity of the content.
-
Key words:
- high resolution /
- multiple phase centres(MPC) antenna /
- spaceborne SAR /
- PRF /
- false target
-
[1] 张澄波.综合孔径雷达:原理、系统分析与应用[M],北京:北京科学出版社,1989.86~98 Zhang Chengbo.Synthetic aperture radar:theory,system analysis and application[M].Beijing:Beijing Science Press,1989.86~98(in Chinese) [2] 魏钟铨.合成孔径雷达卫星[M].北京:科学出版社,2001.1~7,154~157 Wei Zhongquan.Synthetic aperture radar satellite[M].Beijing:Science Press,2001.1~7,154~157(in Chinese) [3] Currie A, Brown M A. Wide|swath SAR[J]. IEEE Proceedings|F, 1992,139(2):122 [4] 刘永坦.雷达成像原理[M].哈尔滨:哈尔滨工业大学出版社,1999 Liu Yongtan.Radar imaging theory[M].Harbin:Harbin Industry University Press,1999(in Chinese) [5] 黄 岩.高分辨率星载合成孔径雷达成像处理技术研究 .北京:北京航空航天大学电子工程系,1999 Huang Yan. Study of high resolution spaceborne SAR inaging algorithm .Beijing:Dept.of Electronic,Beijing University of Aeronautics and Astronautics,1999(in Chinese) [6] Wu Chialin,Jin Michael.Modeling and a correlation algorithm for spaceborne SAR signals[J]. IEEE Transaction on Aerospace and Electronic Systems,1982,AES-18(5) 期刊类型引用(8)
1. 赵志彬，杨正伟，李胤，寇光杰，陈金树，张炜. 低速冲击下碳/玻混杂复合材料红外辐射特征. 北京航空航天大学学报. 2023(01): 177-186 . 
本站查看2. 石姗姗，吕超雨，吕航宇，程功，孙直. 具有Kevlar短纤维界面增韧的碳纤维/铝蜂窝夹芯板冲击后压缩性能. 复合材料学报. 2023(02): 771-781 . 
百度学术3. 刘俭辉，潘仪晨，薛文卓，孙建仁. T300/69层合板多角度冲击下的数值模拟研究. 兰州理工大学学报. 2023(03): 43-48 . 百度学术4. 谭理成，汪舟，王晓丽，杨莹，蒋亚琴，曾飞，段芳芳，甘进. 冲头形状对复合材料层合板低速冲击力学行为影响研究. 兵器材料科学与工程. 2023(04): 1-7 . 百度学术5. 夏法锋，张红哲，李洋. 基于3D打印技术制备CF-PLA纤维及性能研究. 塑料工业. 2023(08): 152-157 . 百度学术6. 许良，胡鸿铭，周松，宋万万. 两次冲击距离对CFRP层合板冲击损伤和剩余压缩强度的影响. 复合材料科学与工程. 2023(12): 12-18+37 . 百度学术7. 张梦涛，刘峰，李雪江. 碳纤维层合板低能量冲击后静强度试验研究. 新技术新工艺. 2022(01): 62-66 . 百度学术8. 王涛，杨勇新. 低速冲击下复合材料组合板新型耗能模式研究. 复合材料科学与工程. 2022(02): 75-81 . 百度学术其他类型引用(8)
-
百度学术
点击查看大图
计量
- 文章访问数: 3088
- HTML全文浏览量: 240
- PDF下载量: 958
- 被引次数: 16
下载:
