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An internal calibration scheme for polarimetric Synthetic Aperture Radar system
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009Two important aspects of internal calibration of polarimetric Synthetic Aperture Radar (SAR) are discussed, that is, system gain calibration and individual Transmit/Receive Module (TRM) calibration. System gain variation is measured utilizing the internal calibration loop. Dualchannel TRM gain and phase calibration is carried out using Orthogonal Phase
Shuo Wang, Weidong Yu, Haiming Qi
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The simulation study on polarimetric synthetic-aperture radar
IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003The simulation study on polarimetric synthetic-aperture radar (SAR) is presented in this paper. Compared with conventional SAR simulation methods, the approach uses a model of the target with phase information that is required by the polarization synthesis.
null Xiangyang Qi +2 more
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Spatially Variant Restoration for Polarimetric Synthetic Aperture Radar Imagery
2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006A. spatially variant speckle filter is proposed for multi-look polarimetric synthetic aperture radar (POLSAR) imagery. The central idea is that the filtering is applied only to homogeneous areas based on the scattering properties, while for detected edges, lines and point-like textural features, the original complex covariance matrix of these features ...
Ken Yoong Lee, Timo Rolf Bretschneider
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Filtering of polarimetric synthetic aperture radar images: A sequential approach
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012This paper introduces a novel method for filtering polarimetric synthetic aperture radar (POLSAR) imagery data. Unlike most existing filters, the proposed one is freed from using searching windows but implements the filtering in a sequential fashion. Specifically, we propose to use the inverse Wishart distribution as the conjugate prior model for the ...
Yi Cui 0002 +3 more
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Oil platform detection by compact polarimetric synthetic aperture radar
2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013We present a innovative physically-based approach to detect oil platforms by using compact polarimetric (CP) synthetic aperture data. We utilize two RADARSAT-2 fine quad-polarization SAR images of Gulf of Mexico to estimate the CP covariance matrix. The resulting CP data is used to reconstruct pseudo quad-polarization covariance matrix.
Biao Zhang 0001 +5 more
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Polarization Calibration Technology for Polarimetric Synthetic Aperture Radar
2021SAR calibration is used to establish the exact relationship between image intensity and ground backscattering coefficient, which is the key to realize quantitative remote sensing of SAR. In order to fully utilize the information contained in multi-channel multi-polarization data, quantitatively analyzing the correlation between different channels and ...
Ruliang Yang +5 more
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Polarimetric calibration of circularly polarized synthetic aperture radar data
IEEE Transactions on Geoscience and Remote Sensing, 2017Two novel aspects of polarimetric calibration for fully polarimetric imaging radar systems are addressed. First, the radar system model is formulated in the context of two generic transmitter designs, either a single amplifier followed by a high-power switch or a low-power switch followed by two amplifiers.
Paul B. Pincus +3 more
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Compact polarimetric synthetic aperture radar for monitoring crop condition
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Adoption of optical vegetation indices for local, national, and global crop condition monitoring is wide spread. Given that cloud cover impedes acquisition of these data, this research examines whether Synthetic Aperture Radar (SAR), specifically a compact polarimetric (CP) configuration, could augment these operational initiatives.
Heather McNairn +5 more
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Enhanced Processing of Polarimetric Synthetic Aperture Radar Images
2021Polarization synthesis technology plays an important role in polar SAR image processing. The polarization synthesis technique can be used to calculate the echo power of any combination of the transmitting antenna and the receiving antenna from the polarization scattering matrix of the target.
Ruliang Yang +5 more
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Polarimetric Synthetic Aperture Radar Target Detection Technology
2021Target detection of synthetic aperture radar images is an important issue in military applications. Since the rise of SAR image target detection in the 1990s, it has been widely used due to its huge application value and the urgent needs of image interpretation applications.
Ruliang Yang +5 more
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