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A novel method of three-dimensional (3D) imaging based on orthogonal-track synthetic aperture radar (SAR), is proposed in this paper. In the scheme, the SAR sensor moves along two orthogonal tracks successively and two SAR images are obtained. Then we extract the spacial information from the two-dimensional (2D) SAR images to reconstruct the 3D distribution of scatterers in the common part. The orthogonal-track...
Synthetic Aperture Radar (SAR) can take a fine radar image without relation to sunshine condition, so it is important to propose the display method that fulfills a user's demand. SAR provides some information with high-level process. To confirm both SAR image and the results of the high-level process simultaneously, the color display is effective. However, conventional method has the restriction of...
The Linfen-Yuncheng Basin (LYB) is one of the most serious geo-hazards regions in China, which have been experiencing severe geo-tectonic movement, seismic, land subsidence and ground fissures. To monitor the complex surface deformation at LYB, Interferometric Synthetic Aperture Radar (InSAR) is employed. Forty-nine scenes acquired from three SAR tracks from 2007 to 2011 are used to obtain the ground...
Taiyuan Basin is one of the regions with complex geological structure and frequent seismic activities in China. Because of groundwater exploitation and tectonic activity, land subsidence has occurred widely in this region. For disaster prevention and mitigation, obtaining ground deformation characteristics within the basin is an urgent requirement. The Interferometric Synthetic Aperture Radar (InSAR)...
High-coherent pixels detection and spatial coverage restriction are the key difficulties when applying the InSAR time series analysis in Altyn Tagh Fault (ATF) system based on stripmap SAR data. In this paper, a modified InSAR time series analysis method combining PS and DS is presented in order to increase the number of selected high-coherent pixels. Then a displacement velocities merging strategy...
Taiyuan graben basin has been suffering serious ground deformation due to the combined effects of groundwater pumping, ground fissures and faults. However, most ground deformation monitoring mainly focus on the single city, thus it is difficult to reveal the regional extent of the deformation. Fifty-five ALOS/PALSAR images acquired from three adjacent tracks from 2007 to 2011 are used to obtain annual...
The paper analyzes the problem of achieving a coherent operation in Geostationary SAR (GEOSAR) missions intended for continuous monitoring of land surfaces. In contrast to LEOSAR missions, GEOSAR uses very long SAR integration times (from minutes to hours). Accordingly phase errors due to orbit perturbations, radar master oscillator drift, atmosphere propagation and other sources must be conveniently...
In this work, an automatic method is proposed to determine the center of tropical cyclones (TCs) from a series of RADARSAT-1 synthetic aperture radar (SAR) images, which captured TCs over the Atlantic, the Pacific and the Indian Ocean during the years from 2001 to 2007. The TC centers determined by the method are compared to the TC best track (BT) datasets provided by National Hurricane Center (NHC)...
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