GEO-LEO双站视频SAR系统若干问题研究

发布时间：2018-06-25 22:33

本文选题：天基视频合成孔径雷达 + 双站合成孔径雷达　；参考：《现代雷达》2017年03期

【摘要】：视频合成孔径雷达(SAR)作为一种新型的微波遥感体制,能够实现热点区域的持续监测。文中提出了一种基于GEO-LEO双站模式的天基视频SAR系统,其中发射源位于地球静止轨道,低轨卫星顺序接收目标场景回波信号实现对场景的持续视频监测,基于该双站模式建立了回波信号模型;同时,提出了天基视频SAR成像过程中回波数据分割与重叠率的计算方法;最后,分析了该天基视频SAR系统的几何分辨率。文中的研究成果可以为天基视频SAR系统的构建提供参考。
[Abstract]:As a new microwave remote sensing system, video synthetic aperture radar (SAR) can continuously monitor hot spots. In this paper, a space-based video SAR system based on GEO-LEO bistatic mode is proposed, in which the transmitter is located in geostationary orbit, and the low-orbit satellite receives the echo signal of the target scene sequentially to realize the continuous video monitoring of the scene. The echo signal model is established based on the bistatic mode, and the method to calculate the echo data segmentation and overlap rate in space-based video SAR imaging is proposed. Finally, the geometric resolution of the space-based video SAR system is analyzed. The research results in this paper can provide a reference for the construction of space-based video SAR system.
【作者单位】：航天东方红卫星有限公司;中国空间技术研究院神舟学院;
【分类号】：TN957.52

【参考文献】