辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(11)：1178-1181,4.DOI:10.11956/j.issn.1008-0562.2017.11.011
利用补偿DSM的星载SAR影像正射纠正
Ortho-rectification of space-borne SAR image using compensated DSM
摘要
Abstract
Some rugged surface features (such as housing,etc.) are distorted in ortho-rectification process of SAR image based on Digital Surface Model (DSM) produced by optical remote sensing images without being edited.A new method of automatic compensated DSM is proposed,which meets the need to eliminate the anomalous points of DSM produced by optical remote sensing images based on the global SRTM of 30 meters grid.And then,median filtering method is adopted to improve the smoothing in order to eliminate the partial anomalous points.Compensated DSM is used for ortho-rectification of SAR image of YG-7.The experimental results indicate that the proposed method can be utilized to eliminate the phenomenon of distortion in the space-borne SAR ortho-image.The feasibility of the method which is used to reduce the workload of DSM manual edit is demonstrated.This study provides theoretical basis of engineering to produce the ortho-rectification product of space-borne SAR.关键词
资源三号/SAR/正射纠正/中值滤波/DSMKey words
ZY-3/SAR/ortho-rectification/median filter/DSM分类
天文与地球科学引用本文复制引用
赵瑞山,杨帆,张过,邵阳..利用补偿DSM的星载SAR影像正射纠正[J].辽宁工程技术大学学报（自然科学版）,2017,36(11):1178-1181,4.基金项目
测绘地理信息公益性行业科研专项经费项目(201512022) （201512022）
辽宁“百千万人才工程”项目(2010921099) （2010921099）
