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DEM reconstruction of western mountain area based on InSAR technology

Chuanguang Zhu

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Abstract

InSAR(Synthetic Aperture Radar Interferometry) is a new technology for achieving Digital Elevation Model(DEM).The paper introduces the basic flow of achieving DEM with InSAR technology and describes the theoretical method of phase unwrapping,at the same time the method and principle of obtaining ground control points among baseline evaluation processing are brought forward.Then,a DEM of the western mountain area was obtained,which also is compared and analyzed with SRTM-DEM.The reasons for their existence are summarized at last.

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What this paper is about

InSAR(Synthetic Aperture Radar Interferometry) is a new technology for achieving Digital Elevation Model(DEM).The paper introduces the basic flow of achieving DEM with InSAR technology and describes the theoretical method of phase unwrapping,at the same time the method and principle of obtaining ground control points among baseline evaluation processing are brought forward.Then,a DEM of the western mountain area was obtained,which also is compared and analyzed with SRTM-DEM.The reasons for their existence are summarized at last.

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Available abstract

InSAR(Synthetic Aperture Radar Interferometry) is a new technology for achieving Digital Elevation Model(DEM).The paper introduces the basic flow of achieving DEM with InSAR technology and describes the theoretical method of phase unwrapping,at the same time the method and principle of obtaining ground control points among baseline evaluation processing are brought forward.Then,a DEM of the western mountain area was obtained,which also is compared and analyzed with SRTM-DEM.The reasons for their existence are summarized at last.

Key concepts: Interferometric synthetic aperture radar, Digital elevation model, Shuttle Radar Topography Mission, Remote sensing, Phase unwrapping, Interferometry, Baseline (sea), Geodesy

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