Riccardo Lanari

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We present a new differential synthetic aperture radar (SAR) interferometry algorithm for monitoring the temporal evolution of surface deformations. The presented technique is based on an appropriate combination of differential interferograms produced by data pairs characterized by a small orbital separation (baseline) in order to limit the spatial(More)
This article focuses on methodologies with recurrent use to code examples that try to couple with the flow of the main steps of the SAR processing. The possibility to be comprehensive was prevented by the wide scenario of variations of the focusing algorithm as well as the spread of applications. The reader should look at this work as a sample of(More)
This paper presents a differential synthetic aperture radar (SAR) interferometry (DIFSAR) approach for investigating deformation phenomena on full-resolution DIFSAR interferograms. In particular, our algorithm extends the capability of the small-baseline subset (SBAS) technique that relies on small-baseline DIFSAR interferograms only and is mainly focused(More)
We present a new spotlight SAR data-focusing algorithm based on a two-step processing strategy that combines the advantages of two commonly adopted processing approaches: the efficiency of SPECAN algorithms and the precision of stripmap focusing techniques. The first step of the proposed algorithm implements a linear and space-invariant azimuth filtering(More)
T. Le Toan, A. Beaudoin, J. Riom, and D. Guyon, “Relating forest biomass to SAR data,” IEEE Trans. Geosci. Remote Sensing, vol. 30, pp. 403411, 1992. M. C. Dobson et al., “Dependence of radar backscatter on conifer forest biomass,” IEEE Trans. Geosci. Remote Sensing, vol. 30, pp. 41 2-415, 1992. K. J. Ranson and Q. Sun, “Mapping biomass of a northern forest(More)
In this paper, an extension of the minimum cost flow (MCF) algorithm dealing with a sparse data grid, which allows the unwrapping of multitemporal differential synthetic aperture radar (SAR) interferograms for the generation of deformation time series, is presented. The proposed approach exploits both the spatial characteristics and the temporal(More)
AbstructIn this paper, we exploit the interferometric multifrequency potentiality of the SIR-CK-SAR system which is equipped with an L-, C-, and X-band sensor. We present a solution to improve the unwrapping performance of the Cand X-band data by considering the L-band unwrapped pattern. A new algorithm for the generation of a single digital elevation model(More)
[1] We use the Small BAseline Subset (SBAS) InSAR algorithm to obtain radar line-of-sight deformation velocities for two adjacent SAR swaths and invert the data for the 2-D velocity field in vertical and ground range direction. The analysis reveals areas of rapid deformation caused by mining and agricultural activities in the Crescent Valley, Nevada, USA.(More)