【作者】 王博； 朱云龙；

【Author】 WANG Bo;ZHU Yunlong;School of Electronics and Information Engineering,Beihang University;

【机构】 北京航空航天大学电子信息工程学院；

【摘要】 研究了基于GPS L1信号的双基SAR运动目标成像技术,分析了导航信号双基SAR成像方法对运动目标成像时出现的问题,提出了一种基于频域滤波的运动目标成像方法,结果表明这种方法可以实现对运动目标的正确成像。重点对机载接收机场景下的几何模型、目标回波特性进行了理论分析,仿真得到运动目标的成像结果,对GPS L1信号的分辨率进行理论分析并对成像结果进行验证。更多还原

【Abstract】 The bistatic SAR moving target imaging technology based on GPS L1 signal is studied. The problem of the bistatic SAR moving target imaging method of navigation signal is analyzed and a moving target imaging method based on frequency domain filtering is proposed. The simulation shows that this method can be used to image the moving target. The geometric model and target echo characteristics in the scene of the airborne receiver is analyzed. The imaging results of the moving target are given by simulation. The resolution of the GPS L1 signal is theoretically analyzed and compared to imaging results.更多还原