摘要
合成孔径雷达的出现是科技发展史上的一个重要变革,它是一种具有高分辨率的成像雷达。SAR成像的高分辨率依赖于其对信号的处理。围绕机载雷达的成像算法展开论述,针对距离多普勒算法进行详细的探讨和研究,并对该算法进行仿真分析。以此为基础完成对机载实测数据的成像,并探究多普勒参数估计等对成像质量的改善,最终完成对机载SAR实测数据的成像。
The emergence of synthetic aperture radar is an important change in the history of science and technology. It is an imaging radar with high resolution. The high resolution of SAR imaging is dependent on its processing of the signal. The imaging algorithm of airborne radar and the distance Doppler algorithm are discussed and studied in detail,and the algorithm is simulated for the analysis. Based on this,the imaging of the airborne measured data is completed,and the improvement of imaging quality using method such as Doppler parameter estimation is explored,and the imaging of the airborne SAR measured data is finally completed.
作者
刘梦杰
代大海
吴昊
周涛
贺雨露
LIU Mengjie;DAI Dahai;WU Hao;ZHOU Tao;HE Yulu(National Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China;School of Electronic Science, National University of Defense Technology, Changsha 410073, China)
出处
《无线电工程》
2019年第9期807-811,共5页
Radio Engineering
基金
国家自然科学基金资助项目(61490690,61501473)
湖南省杰出青年基金资助项目(2017JJ1006)
关键词
合成孔径雷达
距离多普勒算法
实测数据
多普勒参数估计
synthetic aperture radar
range Doppler algorithm
measured data
Doppler parameter estimation
