摘要
研究的是基于卫星编队InSAR的基线检测技术,利用高精度的地面实验场数据,对高动态、分布式卫星条件下合成孔径雷达系统的InSAR基线参数进行检测。通过分析,提出一种改进的基于基线线性拟合的基线检测方法,并采用ERS真实数据进行基线检测实验,通过比较检查点高程和进行精度分析表明,采用该基线检测方法基线精度有很大提高,具有很高的实际应用价值。
For InSAR data processing,baselines are vitally parameters and play important role for acquisition height of ground point.In the InSAR system based on formation-flying satellites,baselines changes continuously due to continuous movement of each satellite.So a credible and accurate method is needed.Baseline detection is one of important ways to get high-precision baseline.As a consequence,there are few experiences to use for reference in this work.This paper focuses on study the baseline detection in the formation-flying satellites,which test baseline parameters of InSAR formed by hi-dynamic and distributed satellites using the hi-precision ground area data.Based on analysis,an improved—model of baseline detection based on baseline linear fitting is presented.The tests of the method have been done using with the ERS real data.The result shows the method make great improvement and can be implemented in practice.
出处
《测绘学报》
EI
CSCD
北大核心
2010年第2期175-179,共5页
Acta Geodaetica et Cartographica Sinica
基金
国家863计划(2003AA716062)
关键词
干涉合成孔径雷达
基线
卫星编队
基线估计
基线检测
精度分析
InSAR
baseline
formation-flying satellites
baseline estimation
baseline detection
precision analysis
