SAR场景目标原始回波数据仿真  

Simulation of Scenes Target's Raw Data in Synthetic Aperture Radar

作　　者：霍耀[1] 宋元鹤[1] 张群[1] 何元桥[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《弹箭与制导学报》2008年第6期266-268,290,共4页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(60672032);陕西省自然科学基础研究项目(2007F28)资助

摘　　要：合成孔径雷达(SAR)原始数据在SAR系统设计、成像算法研究的过程中是必不可少的,但真实数据的获取既昂贵又不灵活,文中以机载SAR系统回波信号模型为基础,详细阐述了回波数据的时域模拟方法,该方法真实地模拟了雷达发射、接收信号的过程,不需要另外注入距离徙动。给出了模拟的步骤和场景目标的仿真结果,并通过与频域法模拟数据的比较证明了时域方法的有效性。Synthetic aperture radar （SAR） raw data is essential for SAR system design and imaging algorithm research, but real data is expensive and inflexble. The time domain simulation method of raw data was explained in detail on the basis of SAR system return signal model. It simulates real process of radar emitting and receiving, which needs no additional range cell migration. The steps and results of simulation were provided and the validity of the proposed method was proved by comparing with the simulation data obtained with frequency domain method.

关 键 词：合成孔径雷达 原始数据 仿真 

分 类 号：TN958[电子电信—信号与信息处理]