Marrone6 1 harvardsmithsonian center for astrophysics, 60 garden street, cambridge, ma 028, usa. Using the linear polarization basis, output data products are summarized in table 3. Analysis of compact polinsar target decomposition with. Summary during the last decade, very significant advances have been made in polarimetric sar information extraction technology.
Potential of coherent decompositions in sar polarimetry. In this paper, we apply the freemandurden decomposition method to the compact polarimetric synthetic aperture radar sar. Therefore, the complex cross correlation matrix between two ends of baseline is a 22ucomplex matrix. To date, test sites presented in the literature with polarimetric sar interferometry have been a mixed forestryagricultural area close to lake baikal, measured at l band by sirc 9 and a test site with corn fields in switzerland, measured at l band by esar 14, 15. Pdf potentials of a compact polarimetric sar system. The key idea is to note that for random volume scattering the interferometric coherence is invariant to changes in wave polarisation. Upon surveying the capabilities and availabilities of such aircrafts, the proteus aircraft and the altair uav. Comparison with compact polarimetric sar interferometry 29.
This combination leads to several important differences between the. Polarimetric interferometry is a special case of multichannel coherent radar. The cband synthetic aperture radar sar data from the bohai sea of china, the labrador sea in the arctic and the weddell sea in the antarctic are used to analyze and discuss the sea ice full polarimetric information reconstruction ability under compact polarimetric modes. Sp529 polinsar applications of polarimetry and polarimetric. It further characterizes objects in terms of frequently encountered, physically appealing concepts of odd and evenbounce scattering. Such systems are well suited for the extraction of bio and geophysical parameters by evaluating the combined scattering from surfaces and volumes.
Potentials of bistatic polarimetric sar for subsurface imaging in arid regions. An efficient feature optimization for wetland mapping by. This lecture is intended to scientists, engineers and students engaged in the fields of radar remote sensing and interested in polarimetric sar image analysis and applications. Synthetic aperture radar sar has been widely used for earth remote sensing for more than 30 years. Up to now, various airborne and spaceborne polarimetric sar systems have been developed, such as airsar, pisar12, efsar, cv580. With polarimetric very long baseline interferometry michael d. We investigate multichannel imaging radar systems employing coherent combinations of polarimetry and interferometry polinsar. In this paper, we apply this polinsar decomposition technique to compact polarimetric 3 sar interferometry. This radar will be installed on an unmanned airborne vehicle uav or a lightweight, highaltitude, and long endurance platform. Palsar observations and associated reconstruction algorithms article pdf available april 2009 with 61 reads how we measure reads. Multibaseline coherence optimisation in partial and.
Analysis of compact polarimetric sar imaging modes t. The successful launch of the envisat asar in march 2002 demonstrates the interest of multipolarisation for new applications development. The polarimetric interferometry synthetic aperture radar sar imaging not only can. Polarimetric interferometry and differential interferometry. Sar polarimetry phase sensitivity sar interferometry established technique for terrain topography estimation allows location of scattering centers inside the resolution cell sensitive to scatterers shape, orientation and dielectric properties allows decomposition of different scattering processes. Compact polarimetry overview and applications assessment. A study of layered targets in the context of polarimetric interferometry was. Introduction the nasajpl airsar system is capable of collecting both polarimetric and interferometric sar data.
Two polarimetric acquisitions are combined in an interferometric image, characterised by a polarimetric and interferometric. The compactpol target scattering vector has only two elements. Theory and palsar observations of the polinsar mode. The potentials of polarimetric sar interferometry for image segmentation, classification, and vegetation measurements have successfully been demonstrated in many airborne sar campaigns. Furthermore in 2003 esa is intending to initiate a followup study on polinsar, taking. Spaceborne polarimetric sar interferometry enables quantitative measurements of important bio and geophysical parameters of the earth surface on a global scale.
Sar compact polarimetry cp for earth observation and planetology. Desnos3 1disp, torvergatauniversity,rome, italy 2 ietr umr cnrs 6164, universityof rennes1, rennes,france 3europeanspace agency,esa. The tutorial material is made available in pdf format and is also bundled with the software itself. Nowadays, considering the need for a compromise among swath coverage, hardware requirements, and scattering information of measured scenes, compact polarimetry cp offers a good option for many polarimetric sar applications. Singlepass polarimetric sar interferometry for vessel classi. Threecomponent decomposition for compact polarimetric. Two polarimetric acquisitions are combined in an interferometric image, characterised by a polarimetric and. Call for papers ieee geoscience and remote sensing. Theory and palsar observations of the polinsar mode m. The polarimetric interferometry system can be implemented by collecting polarimetric data for both upper and lower antennas. Briscoan assessment of simulated compact polarimetric sar data for wetland classification using random forest algorithm. Classification comparisons between dualpol, compact.
The 3rd international workshop on science and applications. Polarimetric interferometric synthetic aperture radar sar is a recent area of. On the use of polarimetry and interferometry for sar image. We will illustrate a specific applications employing imagery collected by the new space borne polarimetric sar systems lband alospalsar, cband radarsat2, and xband terrasarx and polarimetric airborne sar data. Polarimetric synthetic aperture radar interferometry polinsar can also be used to enhance the detection of military targets hidden beneath foliage. Desnos3 1disp, tor vergata university, via del politecnico 1, 003 rome, italy email. Identification of soil freezing and thawing states using sar polarimetry at cband. In this paragraph, we sta rt by going over the results of applying the rvog model to cpolinsar data and. For a small number of looks, the hypergeometric functions can be replaced by simpler. The type of compact polarimetric mode which has the highest reconstructed accuracy is. Comparing a polarimetric sar system, compact polarimetric sar has some advantages in pulse repeat frequency and width of surveying although it has some disadvantages. Full and compact polarimetric radar interferometry for vegetation.
Solimini, eric pottier and yveslouis desnos no static citation data no static citation data cite. The digital terrain model dtm generation from interferometry sar insar as a technique is not a new one, but getting a better dtm from polarimetric radar data is a new field of research. The authors discuss the role and performance of compact polarimetry in sar interferometry. Generation of digital terrain models using polarimetric. In this special issue, two papers are on the applications of compact polarimetric sar. Pdf a compact polarimetry cp mode can be defined as a dualpol mode that transmits a generic polar ized wave, usually circular or linear. Rao is a professor at the centre of studies in resources engineering, indian institute of technology bombay, mumbai, india. Indoor experiments on polarimetric sar interferometry. Comparison of compact polarimetric with full polarimetric radar data for land use discrimination.
A compact, reconfigurable polarimetric, interferometric. Since the gbsar system is not a ected by temporal decorrelation e ects, a constrained procedure using identical polarisation states for both images in the interferometric pair was developed. The considered sar architecture transmits either a linearly polarised wave oriented at 45 or a circularly polarised one, and receives at horizontal and vertical polarisation. Glacier classification and movement estimation using sar. Poster no paperidtitle submitting author organisation 1 2. Formalism of compact polarimetric descriptors and extension of the b. Request pdf compact polarimetric sar interferometry. Potentials of polarimetric sar interferometry for agriculture monitoring juan m. Glacier classification and movement estimation using sar polarimetric and interferometric techniques sahil sood enschede, the netherlands thesis submitted to the faculty of geoinformation science and earth observation of the university of twente in partial fulfilment of the requirements for the degree of master of.
Compact polarimetric sar is a special dual polarized sar system. B method for general compactpol sar ieee transactions on geoscience and remote sensing isi refereed, vol. Whereas with radar polarimetry the textural finestructure, target orientation, symmetries and material constituents can be recovered with. Relative astrometry of compact flaring structures in sgra. Third international workshop on science and applications sar polarimetry and polarimetric interferometry. On the role of coherence optimization in polarimetric sar. With a polarimetric sar, we can obtain much more information than conventional sar systems i. His early research was focused on the use of synthetic aperture radar. Polarimetric interferometry polarimetric interferometry combines both sar polarimetry and sar interferometry. Introduction 70kb part i tutorial on radar polarimetry. Sar cpolsar, compact polarimetric sar interferometry. Forest biomass estimation using polarimetric sar interferometry. Spaceborne polarimetric sar interferometry 3273 the sensitivity of the interferometric phase and coherence to spatial variability of vegetation height and density make the estimation of vegetation parameters from interferometric measurements at lower frequencies c, l, or pband a challenge4,5,6,7.
He is working in the field of microwave remote sensing and land based applications for more than 34 years. Simulated compact polarimetric sar change detection using radarsat2. A study was done to develop a compact lband polarimetric radar for repeatpass and alongtrack interferometry. Extraction and analysis of polarimetric interferometry information of. The use of polarimetric coherence optimisation techniques was studied. Multibaseline coherence optimisation in partial and compact polarimetric modes.
Radar interferometry is a technique that makes a significant contribution to the topography mapping. An efficient feature optimization for wetland mapping by synergistic use of sar intensity, interferometry, and polarimetry data. Assessment of cband compact polarimetry sar for sea ice. The introduction of polarimetric sar interferometry polinsar at the end of the 1990s was a decisive step towards developing remote sensing applications relevant to forestry. Polarimetric sar is an advanced imaging radar system. Singlepass polarimetric sar interferometry for vessel.
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