Results 71 to 80 of about 206 (121)
Estimation of tree height from PolInSAR : the effects of vertical structure and temporal decorrelation [PDF]
, 2019 Height values of trees are an important indicator of the health and viabilityof forests. At present, it is the main biophysical parameter observable fromremote sensing images, in particular from Polarimetric Interferometric SAR(PolInSAR) data. It is important to have these values as accurately aspossible.
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PolInSAR Ground and Volume Response Separation [PDF]
, 2019 Alonso-Gonzalez, Alberto +1 more
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Compact PolInSAR for vegetation characterisation
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007In this paper, we analyse the potential associated with a compact polarimetry (CP) P band spaceborne SAR system. Indeed, this architecture allows polarimetric acquisition without the usual reduction in swath. The CP data is shown to be almost equivalent to the full polarimetric data over extended targets, and the PolInSAR analysis can be performed ...
Sébastien Angélliaume +2 more
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Multibaseline POLInSAR coherence modelling and optimization
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007This paper analyzes a POLInSAR coherence model with respect to polarization diversity. The coherence constituents are identified and examined. Extending POLInSAR to multiple baselines, two general multibaseline coherence optimization methods are introduced.
Maxim Neumann +2 more
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UAVSAR PolInSAR and tomographic experiments in Germany
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016The NASA/JPL UAVSAR system was deployed to Europe in the May-June 2015 to collect data in support of experiments in Iceland, Norway and Germany. The deployment in Germany was focused on PolInSAR and tomographic data collections at the Traunstein Forest and in the Munich urban area. In addition data were collected at Kaufbeuren, the DLR calibration site,
Hensley, Scott +8 more
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Internal and external calibration of POLINSAR
Proceedings of 2011 IEEE CIE International Conference on Radar, 2011Polarimetric SAR interferometry (POLINSAR) techniques have been studied as hot research topics in the area of SAR remote sensing in recent years. At present, many POLINSAR systems were developed, and the first POLINSAR prototype in China is also developed by 38th Research Institute of CETC.
null Wang Yang +3 more
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The Optimum Baseline Analysis for Polinsar Forest Height Mapping
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021The interferometric vertical wavenumber (or baseline) has a direct impact on PolinSAR forest height mapping, which must be selected appropriately to acquire optimum inversion performance. In this paper, the key parameters influencing the height estimation precision are considered to simplify the system performance analysis.
Xiao Wang 0020, Feng Xu 0001, Ya-Qiu Jin
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Advances in polinsar retrieval algorithms of agricultural crops
Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005Polarimetric SAR Interferometry has been recently applied to the retrieval of parameters from agricultural crops. The estimation procedure is based on the assumption of the so- called Oriented Volume over Ground model for the scene. Unfor- tunately, this model leads to a nonlinear formulation that must be inverted.
Juan M. Lopez-Sanchez +3 more
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Target characterization by means of PolInSAR temporal evolution
2014 IEEE Geoscience and Remote Sensing Symposium, 2014This work focuses on the exploitation of PolSAR and PolInSAR temporal series datasets in the context of change detection and characterization. Instead of a classical pixel-based approach, a Binary Partition Tree (BPT) data structure is employed to perform a region-based processing of the image. Once the homogeneous regions of the data set are obtained,
Alonso González, Alberto +1 more
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