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Statistical assessment of eigenvector-based target decomposition theorems in radar polarimetry

C. Lopez-Martinez, E. Pottier, S.R. Cloude
2005 IEEE Transactions on Geoscience and Remote Sensing  
This analysis permits us to determine in detail the effects of the number of averaged samples in the estimation of physical information in radar polarimetry.  ...  The availability of this expression allows a complete study of the separated sample eigenvalues, as well as, the entropy H and the anisotropy A.  ...  ACKNOWLEDGMENT The authors would like to thank the reviewers for their useful comments and suggestions which help to improve the paper.  ... 
doi:10.1109/tgrs.2005.853934 fatcat:unykxhcso5ejlfhrhggguec3qm

Advanced Processing of 3D Computational Microwave Polarimetry using a Near-Field Frequency-Diverse Antenna

Rixi Peng, Okan Yurduseven, Thomas Fromenteze, David Smith
2020 IEEE Access  
The advanced processing and parameterization of 3D polarimetry indicate great potential applications in many short-range microwave imaging scenarios.  ...  The target parameters reconstructed in experiments validate the effectiveness of our 3D polarimetric near-field imaging framework and the parameterization.  ...  The three eigenvalues of G are proportional to the radar cross-section for the copolarized scattering of corresponding XPOL-Null polarization states, similar to 2D polarimetry [5] .  ... 
doi:10.1109/access.2020.3021418 fatcat:2mvp3k56d5alzflfv3lu66ndga

Classification of Polarimetric SAR Data Using Spectral Graph Partitioning

K. Ersahin, I. Cumming, M. Yedlin
2006 2006 IEEE International Symposium on Geoscience and Remote Sensing  
Using the similarity of edgealigned patch histograms and spatial proximity, classification performance that is superior to the Wishart classifier is achieved.  ...  This work is motivated by the fact that human experts are very good at visual interpretation and segmentation of POLSAR data, which is often challenging for automated analysis techniques.  ...  Sensing), Defense Research and Development Canada -Ottawa, and Radarsat International.  ... 
doi:10.1109/igarss.2006.454 dblp:conf/igarss/ErsahinCY06 fatcat:r72rpcdagrgpfcjytdeeyyoe6a

Segmentation and Classification of Polarimetric SAR Data Using Spectral Graph Partitioning

K. Ersahin, I.G. Cumming, R.K. Ward
2010 IEEE Transactions on Geoscience and Remote Sensing  
Using the similarity of edgealigned patch histograms and spatial proximity, classification performance that is superior to the Wishart classifier is achieved.  ...  This work is motivated by the fact that human experts are very good at visual interpretation and segmentation of POLSAR data, which is often challenging for automated analysis techniques.  ...  Sensing), Defense Research and Development Canada -Ottawa, and Radarsat International.  ... 
doi:10.1109/tgrs.2009.2024303 fatcat:6q2fofesqvgshfb4zm2uuvy37i

Decomposition Theorems Applied to Random and Stationary Radar Targets

C. M. H. Unal, L. P. Ligthart
1998 Electromagnetic Waves  
in applications of radar polarimetry.  ...  The purpose of a decomposition in radar polarimetry is to provide means for interpretation and optimum utilization of polarimetric scattering data.  ...  Netherlands Technology Foundation for the financial support of this work.  ... 
doi:10.2528/pier97040700 fatcat:7i4tfvm4zresvmh3rtg7dumxuq

Eigenvalue Signal Processing for Weather Radar Polarimetry: Removing the Bias Induced by Antenna Coherent Cross-Channel Coupling

Michele Galletti, Dusan S. Zrnic, Frank Gekat, Peter Goelz
2014 IEEE Transactions on Geoscience and Remote Sensing  
The method enables the removal of the bias due to antenna coherent cross-channel coupling and is applicable in the LDR mode, the ATSR mode and the STSR orthogonal mode of weather radar measurements.  ...  This property had to be expected, since the eigenvalues of the Coherency matrix are SU(2) invariant.  ...  in the present paper (ESP variables) are obtained from the eigenvalues of the 2 × 2 Coherency matrices J H and J V , whereas in the SAR polarimetry community focus is on eigenvalue-and eigenvector-derived  ... 
doi:10.1109/tgrs.2014.2316821 fatcat:h6zlftsri5ej5cvmk2aeo7zufu

Wide-band polarimetric radar inversion studies for vegetation layers

S.R. Cloude, J. Fortuny, J.M. Lopez-Sanchez, A.J. Sieber
1999 IEEE Transactions on Geoscience and Remote Sensing  
Index Terms-Inverse problems, radar polarimetry, synthetic aperture radar (SAR).  ...  An inversion algorithm is presented and applied to broad-band polarimetric radar data from the European Microwave The results have been obtained from measurements of a fir tree and a ficus tree.  ...  They also would like to thank the personnel of the EMSL for their support in performing the measurements and providing the experimental data.  ... 
doi:10.1109/36.789640 fatcat:x6aazdv4ebbtlfusckmn54onnm

Three-Dimensional Imaging and Scattering Mechanism Estimation Over Urban Scenes Using Dual-Baseline Polarimetric InSAR Observations at L-Band

Stefan Sauer, Laurent Ferro-Famil, Andreas Reigber, Eric Pottier
2011 IEEE Transactions on Geoscience and Remote Sensing  
This paper introduces new polarimetric algorithms for generating 3-D images and estimating scattering mechanisms from polarimetric multibaseline (MB) interferometric synthetic aperture radar (SAR) measurements  ...  These new techniques allow for extracting the height of reflectors, the associated scattering mechanisms, and the polarimetric (pseudo)reflectivities.  ...  The first author would like to express his gratitude to G. and G. Sauer for providing the optical building images.  ... 
doi:10.1109/tgrs.2011.2147321 fatcat:eiqq3ps4m5bydebxzueejber4e

A Polarimetric Coherence Method to Determine Ice Crystal Orientation Fabric From Radar Sounding: Application to the NEEM Ice Core Region

Thomas M. Jordan, Dustin M. Schroeder, Davide Castelletti, Jilu Li, Jorgen Dall
2019 IEEE Transactions on Geoscience and Remote Sensing  
Specifically, under the assumption that one of the orientational eigenvectors is vertical, we can determine the horizontal eigenvectors and the difference between the horizontal eigenvalues (a measure  ...  Polarimetric radar sounding provides a means to infer anisotropic COF patterns due to the associated birefringence of polar ice.  ...  We would like to thank 16 Jonathan Bamber, University of Bristol, and Maurine Montagnat, Univ. Grenoble Alpes, for their comments.  ... 
doi:10.1109/tgrs.2019.2921980 fatcat:zft4mdgzqneqhkyu3gpwzdxqsy

Basic Principles of SAR Polarimetry [chapter]

C. López-Martínez, E. Pottier
2021 Remote Sensing and Digital Image Processing  
synthetic aperture radar (SAR) polarimetry.  ...  First of all, the basic principles of wave polarimetry (which deals with the representation and the understanding of the polarization state of an electromagnetic wave) and scattering polarimetry (which  ...  aperture radar (SAR) polarimetry.  ... 
doi:10.1007/978-3-030-56504-6_1 fatcat:ecmbxtyswndetphlaksiyfdx6y

Vertical resolution enhancement by applying polarimetric spectral analysis techniques to multibaseline InSAR data

Stefan Sauer, Kostas Papathanassiou
2012 2012 IEEE International Geoscience and Remote Sensing Symposium  
scattering polarimetry.  ...  The performance of the polarimetric beamforming, Capon, and MUSIC algorithms is investigated by Monte Carlo simulations and compared with the polarimetric Cramér-Rao bound.  ...  The eigendecomposition ofR provides the eigenvaluesλ 1 ≥ · · · ≥λp and the eigenvectors (f 1 , . . . ,f Ns ) and (ĝ 1 , . . . ,ĝp −Ns ) associated with the signal and noise subspace, respectively.  ... 
doi:10.1109/igarss.2012.6351387 dblp:conf/igarss/0003P12 fatcat:apzpic3jtfcqfibdr3tqborgqi

Generalized Poincaré Orthogonality: A New Approach to POLSAR Data Analysis [article]

Shane R. Cloude, Ashlin Richardson
2021 arXiv   pre-print
this space for both monostatic and bistatic radar systems.  ...  We first show how to formulate a general basis for a complex orthogonal scattering space using a generalization of the Poincar\'e formulation, and then show how to optimize the backscattered signal in  ...  Mirror cancellation and compact polarimetry Mirror reflection has a simple S matrix in radar backscatter, namely the 2x2 identity (a = 0 in (2) ).  ... 
arXiv:2109.09093v1 fatcat:xadwiui6yjhmre3zrrnt3sy2rq

Multi-channel Synthetic Aperture Radar Based Classification of Maritime Scenes

Robert W. Jansen, Mark A. Sletten, Thomas L. Ainsworth, Raghu G. Raj
2020 IEEE Access  
INDEX TERMS Multi-channel synthetic aperture radar (SAR), ocean imaging, image classification  ...  Furthermore, the simplicity of the feature space involved together with the demonstrated classification performance on imagery captured by our airborne MSAR system underscore the strength of the methodology  ...  The secondary eigenvalues are much weaker than the primary eigenvalue and thus the secondary eigenvectors do not affect the analysis of the dominant eigenvector.  ... 
doi:10.1109/access.2020.3008350 fatcat:6oryr7tf3zeh5ioytyhswsc4sa

The characteristic polarization states and the equi-power curves

Jian Yang, Y. Yamaguchi, H. Yamada, Z.H. Czyz, W.-M. Boerner, H. Mott, E. Luneburg, Yingning Peng
2002 IEEE Transactions on Geoscience and Remote Sensing  
For further study of the characteristic polarization state and the distribution of the received powers on the Poincaré sphere, we introduce the concept of the equi-power curve.  ...  It is demonstrated that the characteristic polarization states can usually be regarded as the points of contact of the Poincaré sphere and a conicoid representing a power-related quadratic form.  ...  ACKNOWLEDGMENT The authors would like to thank E. Pottier, D. H. O. Bebbington, and the anonymous reviewers for their helpful comments and suggestions.  ... 
doi:10.1109/36.992789 fatcat:marcmaax2vbpdhxhwtxscbidxa

Passive Polarimetric Multistatic Radar Detection of Moving Targets [article]

Il-Young Son, Birsen Yazici
2017 arXiv   pre-print
We study the exploitation of polarimetric diversity in passive multistatic radar for detecting moving targets.  ...  Extensive numerical simulations show the performance of both the detection and the dipole estimation tasks with and without polarimetric diversity.  ...  We approximate (26) with the largest eigenvalue and the corresponding eigenvector. Let ρ be the largest eigenvalue and e sc be the corresponding eigenvector.  ... 
arXiv:1706.09369v1 fatcat:2spgdg66pveqrmfy4t3vf2ligm
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