Spaceborne InSAR Topographic Surveying and Mapping Error Sources Analysis

doi:10.13474/j.cnki.11-2246.2017.0344

Abstract

Abstract: Synthetic aperture radar interferometric is one of the most efficient methods in global surveying and mapping(SAM) applications.Howerer,InSAR is easily affected by kinds of error sources in SAM applications.In this paper,We discuss the reason why domestic SAR satellites fail to provide interferograms operationally. Then we provide the error sources given the interferometric geometry. The first-level error sources of InSAR are defined as master orbital error,slant range error,baseline vector error as well as unwrapped phase error. The error sources are decomposed so that the errors of the second-lever are revealed and analyzed in the paper.

Key words: InSAR, satellite surveying and mapping, DEM

CLC Number:

P237

LI Tao, TANG Xinming, GAO Xiaoming, CHEN Qianfu. Spaceborne InSAR Topographic Surveying and Mapping Error Sources Analysis[J]. 测绘通报, 2017, 0(11): 37-41,50.

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