电波科学学报2011，Vol.26Issue(6)：1200-1206,7.
机载双站聚束合成孔径雷达的三维空间分辨特性
Three-dimensional spatial resolution of airborne bistatic spotlight SAR
摘要
Abstract
A general geometry model of airborne bistatic spotlight SAR is firstly established,and the echo expression in time-frequency domain is presented.Secondly,the difference frequency processing is performed by using the echo of the imaging scene center as the reference.The difference distance obtained is expanded into Taylor series.Then,the three-dimensional spatial resolution of bistatic spotlight SAR is formulated by using the first-order approximation under far-field assumption.Theoretical results are illustrated by numerical simulations.Finally,based on a general bistatic configuration with the transmitter and the receiver flying along the horizontal direction and the sloping direction,the paper analyzes the variation rules of the spatial resolution following by the geometric configuration and the motion parameters.关键词
一般构型/机载双站聚束SAR/远场假设/三维分辨率/特性分析Key words
general geometry/airborne bistatic spotlight SAR/far-field assumption/three-dimension resolution/performance analysis分类
信息技术与安全科学引用本文复制引用
武拥军,黄冶,吴先良..机载双站聚束合成孔径雷达的三维空间分辨特性[J].电波科学学报,2011,26(6):1200-1206,7.基金项目
安徽省自然科学基金 （）
