星载分布式InSAR基线定标场范围确定方法  

Range Determining for Baseline Calibration Field of Spaceborne Distributed InSAR

作　　者：钱方明 陈刚[2,3] 刘薇 张笑微[2,3] 张昊 Qian Fangming;Chen Gang;Liu Wei;Zhang Xiaowei;Zhang Hao(Institute of Geospatial Information,Information Engineering University,Zhengzhou 450001,China;State Key Laboratory of Geo -Information Engineering,Xi'an 710054,China;Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China)

机构地区：[1]信息工程大学地理空间信息学院,河南郑州450001 [2]地理信息工程国家重点实验室,陕西西安710054 [3]西安测绘研究所,陕西西安710054

出　　处：《测绘科学与工程》2018年第4期37-41,共5页Geomatics Science and Engineering

基　　金：国家自然科学基金资助项目(41371439);国家973计划资助项目(613317).

摘　　要：为了解决星载分布式InSAR基线定标场选址问题,本文提出一种基线定标场范围确定方法。该方法首先考虑定标场地形要求,选择平坦地区并保证InSAR干涉成像质量;然后根据定标模型,设计了系统同向运行定标和升、降轨定标两种情况下的定标场范围计算方法;最后将系统运行参数和地球椭球参数作为输入条件,计算了不同纬度值对应的定标场最小范围。该方法可直接服务于基线定标场选址,为下一步基线定标场建设奠定基础。To solve the selection problem of spaceborne distributed InSAR baseline calibration field,a baseline calibration field range determining method is proposed in this paper.Firstly,the terrain requirements of calibration field are taken into consideration,and a flat area is selected and InSAR interferometry image quality is guaranteed.Then,based on the calibration model,a calibration field range calculation method is designed both in condition of system running in the same direction calibration and ascending-descending orbits calibration.Finally,the system operating parameters and the earth ellipsoid parameters are taken as input conditions,and the minimum range of the calibration field corresponding to different latitude values is calculated. This method can be used in selection of baseline calibration field directly and lay the foundation for the next calibration field construction.

关 键 词：分布式干涉合成孔径雷达 基线定标 定标场 

分 类 号：P231[天文地球—摄影测量与遥感]