Main Article Content
Recently, there has been growing interest in dual-pol systems that transmit one polarization and receive two polarizations. Souyris et al. proposed a DP mode called compact polarimetry (CP) which is able to reduce the complexity, cost, mass, and data rate of a SAR system while attempting to maintain many capabilities of a fully polarimetric system. This paper provides a comparison of the information content of full quad-pol data and the pseudo quad-pol data derived from compact polarimetric SAR modes. A pseudo-covariance matrix can be reconstructed following Souyris’s approach and is shown to be similar to the full polarimetric (FP) covariance matrix. Both the polarimetric signatures based on the kennaugh matrix and the Freeman and Durden decomposition in the context of this compact polarimetry mode are explored. The Freeman and Durden decomposition is used in our study because of its direct relationship to the reflection symmetry. We illustrate our results by using the polarimetric SAR images of Algiers city in Algeria acquired by the RadarSAT2 in C-band.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
W.-M. Boerner, H. Mott, E. Luneburg, C. Livingstone, B. Brisco, R. J. Brown, and J. S. Paterson, “Polarimetry in radar remote sensing: Basic and applied concepts,” in Principles and Applications of Imaging Radar, 3rd ed, vol. 2. F. M. Henderson and A. J. Lewis, Eds. Hoboken, NJ: Wiley, pp. 271-356, 1998.
R. Touzi, W.-M. Boerner, J.-S. Lee, and E. Lueneburg, “A review of polarimetry in the context of synthetic aperture radar: Concepts and information extraction,” Can. J. Remote Sens., vol. 30, no. 3, pp. 369–379, 2004.
P. Dubois-Fernandez, J.-C. Souyris, S. Angelliaume, and F. Garestier, "The compact polarimetry alternative for spaceborne SAR at low frequency," IEEE Trans. Geosci. Remote Sens, vol. 46, pp. 3208-3222, 2008.
M-L. Truong-Loï, A. Freeman, P. C. Dubois-Fernandez and E. Pottier, "Estimation of Soil Moisture and Faraday Rotation From Bare Surfaces Using Compact Polarimetry, " IEEE Trans. Geosci. Remote Sens, vol. 47, no. 11, pp. 3608-3615, 2009.
M. Nord, T. L. Ainsworth, J. –S. Lee, and N. Stacy, "Comparison of Compact Polarimetric Synthetic Aperture Radar Modes, " IEEE Trans. Geosci. Remote Sens., vol. 47, no. 1, pp. 147–188, 2009.
J.-C. Souyris, P. Imbo, R. Fjørtoft, S. Mingot, and J.-S. Lee, “Compact polarimetry based on symmetry properties of geophysical media: The π/4 mode,” IEEE Trans. Geosci. Remote Sens., vol. 43, no. 3, pp. 634–646, 2005.
K. Raney, “Hybrid polarimetric SAR architecture,” IEEE Trans. Geosci.Remote Sens., vol. 45, no. 11, pp. 3397–3404, 2007.
S. R. Cloude and E. Pottier, “A review of target decomposition theorems in radar polarimetry,” IEEE Trans. Geosci. Remote Sens., vol. 34, no. 2, pp. 498–518, 1996.
S. V. Nghiem, S. H. Yueh, R. Kwok, and F. K. Li, “Symmetry properties in polarimetric remote sensing,” Radio Sci., vol. 27, no. 5, pp. 693–711, 1992.
M-L. Truong-Loï, "Potentiels d’un système RSO basse fréquence opérant en polarimétrie compacte," Ph.D. dissertation, Univ. Renne1, Renne, France, 2010.
J. J. van Zyl, H. A. Zebker, and C. Elachi, “Imaging radar polarization signatures: Theory and observation,” Radio Sci., vol. 22, no. 4, pp. 529–543, 1987.
A. Freeman and S. L. Durden, “A three-component scattering model for polarimetric SAR data,” IEEE Trans. Geosci. Remote Sens., vol. 36, no. 3, pp. 963–973, 1998.