航天器工程2017，Vol.26Issue(6)：18-23,6.DOI:10.3969/j.issn.1673-8748.2017.06.003
高分三号卫星图像质量指标设计与验证
Design and Verification of Image Quality Indexes of GF-3 Satellite
摘要
Abstract
SAR(synthetic aperture radar)image quality is a series of important parameters to char-acterize the radar imaging and quantitative application ability of SAR satellites.In the system de-sign of GF-3 satellite,according to the ocean application,disaster mitigation,water conservancy, meteorology and others,the image performance requirements are presented to meet the require-ments of different users in typical application and quantitative analysis,and the geometric quality and radiation quality of 2 categories and 13 image quality parameters are determined.The influ-ences of the satellite platform,SAR payload,signal transmission,ground calibration and image processing on image quality are determined,as well as the methods to ensure the image quality parameters through satellite system design are summarized.The conformity of the image quality parameters are verified by the test and operation on orbit,which provides references in design for the subsequent SAR satellites.关键词
高分三号卫星/合成孔径雷达/图像质量指标/几何质量/辐射质量/分块自适应量化Key words
GF-3 satellite/SAR (synthetic aperture radar)/image quality index/geometric quali-ty/radiation quality/BAQ (block adaptive quantization)分类
航空航天引用本文复制引用
赵良波,李延,张庆君,刘杰,袁新哲,陈琦..高分三号卫星图像质量指标设计与验证[J].航天器工程,2017,26(6):18-23,6.基金项目
国家重大科技专项工程 （）
