分布式星载SAR原始数据的模拟  

Simulation of Distributed Spaceborne SAR's Raw Data

作　　者：张平[1] 张林让[1] 刘冰[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《雷达科学与技术》2005年第5期292-296,共5页Radar Science and Technology

摘　　要：在分析单星载SAR完整信号模型的基础上,建立了一种基于地球椭球模型和卫星椭圆轨道模型的单发多收分布式星载SAR回波数据的仿真模型。根据卫星在各自椭圆轨道的运行情况和地球自转的影响,对分布式星载SAR的回波信号作了较为精确的模拟,并给出了详细的模拟步骤。最后以点目标的成像结果证实了该模拟方法的可行性和模拟结果的可靠性。After analyzing the signal model of single spaceborne SAR the distributed spaceborne SAR raw data are produced using a signal model based on ellipsoid model of the earth and elliptical orbit of satellite. A solution for simulating accurately the raw data is given, considering the real satellite movement and the earth rotation. The detail steps of the simulation are presented. Finally, the simulation results validate the feasibility and reliability of the method.

关 键 词：分布式小卫星 星载SAR 原始回波数据 模拟 

分 类 号：TN959.7[电子电信—信号与信息处理]