Haifeng Huang

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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(More)
Distributed spaceborne interferometric synthetic aperture radar (DS-InSAR) system includes more than one baseline, so it is also called multi-baseline InSAR system. It offers additional observation information for the derivation of position and height of object, compared to the single-baseline InSAR system. Based on the additional information it offers, a(More)
The landslide hazard was evaluated based on the Zigui section in three gorges reservoir in this paper. First of all, the geology, topography and other information were analyzed to establish the landslide geological hazard database of Zigui segment; then, the digital elevation model (DEM) of such this segment was built by inputting each data in the form of(More)
This letter presents a new efficient phase filtering algorithm for synthetic aperture radar interferometric phase images. Based on the additive noise model, we assume that the phase without noise is composed of principal phase components and residual phase components. A new two-step adaptive filtering algorithm based on this assumption is then developed.(More)
An application-oriented spaceborne radar advanced simulator (SBRAS) is presented in this paper. SBRAS is initiated by the technical and economical requirements to verify formation-flying distributed satellites synthetic aperture radar (SAR) scheme and simplify the instrument hardware design. The simulator develops a full flow of signal processing including(More)
This paper presents a new efficient algorithm of filtering and unwrapping phase images for interferometric synthetic aperture radar (InSAR) based on nonlinear phase model. First, we analyzed the statistical and signal properties of interferometric phase, and proposed the concept of nonlinear phase model. The model of reflecting topographic contour is used(More)
A multi-mode space-borne Synthetic Aperture Radar (SAR) simulator is presented in this paper. The simulator is based on the Space-borne Radar Advance Simulator (SBRAS), and supports the parameter design, raw data simulation, data focusing and performance evaluation of strip-map mode, spotlight mode, sliding spotlight mode, ScanSAR mode, Terrain Observation(More)
Three-dimensional digital tourism presentation system (3D-DTPS) is a crucial part of digital tourism. As a relatively mature digital earth software and platform, Google Earth (GE) has been widely used in various fields include digital tourism. Especially the release of GE Plug-in and API makes it possible to build sophisticated 3D web map applications which(More)
In this paper, a new two-dimensional phase unwrapping method of interferograms with discontinuities is present. The method is based on the minimum cost flow method and uses the mask produced from phase derivative variance as the new cost function. The phase derivative variance is regarded as the most reliable measure of phase quality when the correlation(More)
The primary objective of the spaceborne interferometric synthetic aperture radar (InSAR) system is to develop a consistent global digital elevation model (DEM). The improvement of the processing speed in global interferometry missions while maintaining the accuracy is becoming an important issue. DEM reconstruction is the most time-consuming step in the(More)