The current synthetic aperture radar (SAR) theory makes a quite restrictive assumption – linearity – in the SAR imaging model, for the convenience of mathematical derivation. That is to say the imaged area is considered as an ensemble of individual point scatterers whose scattered fields and, hence, their responses in the SAR image superimpose linearly [1]. This is the so called the first Born ...

Small Baseline Subset InSAR (SBAS InSAR) utilizes a series of synthetic aperture radar (SAR) interferograms to generate time that can analyze the surface displacements coherent points. Still, atmospheric errors in interferometric SAR (InSAR) measurements seriously affect reliability displacement series. In this article, new approach incorporating Generic Atmospheric Correction Online Service fo...

In this paper, an FPGA based UAV INSAR raw signal simulator is designed to address high computational complexity. It is based on a time domain raw signal generation algorithm and can compute in real time. This signal simulator is designed for Hardware-in-the-loop (HWIL) UAV INSAR simulation which can be used for UAV operator training and system verification. MultiFPGAs are used in this simulato...

Abstract—In this paper, we propose a modified version of the Random Sample Consensus (RANSAC) method for Interferometric Synthetic Aperture Radar (InSAR) image registration based on the ScaleInvariant Feature Transform (SIFT). Because of speckle, the “maximization of inliers” criterion in the original RANSAC cannot obtain the optimal results. Since in InSAR image registration, the registration ...

Article history: We report on InSAR and G Received 18 January 2008 Accepted 9 June 2008 Available online 19 June 2008

In recent years, the number of geological disasters in Sichuan Province has significantly increased due to influence earthquakes and extreme climate, as well disturbance environment by human activities. Thus, disaster monitoring is particularly important, which can provide some scientific basis for prevention reduction. this paper, interferometric synthetic aperture radar (InSAR) technology was...

It is difficult for single time-series Interferometric Synthetic Aperture Radar (InSAR) processing to guarantee the accuracy and efficiency of continuous track monitoring in regions differential subsidence. This paper proposes a new method, integrating Persistent Scatterer InSAR (PS-InSAR) with high precision Small Baseline Subset (SBAS-InSAR) land subsidence rates. Based on PS-InSAR processing...

This dissertation investigates the application of interferometric synthetic aperture radar (InSAR) to the measurement and interpretation of surface displacements over developed aquifer systems. Land subsidence over developed groundwater systems has been observed in a wide variety of hydrogeologic settings worldwide. The phenomenon can be explained with elastic and inelastic deformation of water...

Monitoring, assessing, and understanding the structural health of large infrastructures, such as buildings, bridges, dams, tunnels, and highways, is important for urban development and management, as the gradual deterioration of such structures may result in catastrophic structural failure leading to high personal and economic losses. With a higher spatial resolution and a shorter revisit perio...