Results 191 to 200 of about 25,646 (236)
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UAVSAR Polarimetric Calibration
IEEE Transactions on Geoscience and Remote Sensing, 2015Uninhabited aerial vehicle synthetic aperture radar (UAVSAR) is a reconfigurable polarimetric L-band SAR that operates in quad-polarization mode and is specifically designed to acquire airborne repeat-track SAR data for interferometric measurements. In this paper, we present details of the UAVSAR radar performance, the radiometric calibration, and the ...
Alexander G. Fore +6 more
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Nanopositioning for Polarimetric Characterization
Journal of Nanoscience and Nanotechnology, 2008A positioning system with approximately nanometer resolution has been developed based on a new implementation of a motor-driven screw scheme. In contrast to conventional positioning systems based on piezoelectric elements, this system shows remarkably low levels of drift and vibration, and eliminates the need for position feedback during typical data ...
Naser, Qureshi +3 more
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Fast and accurate polarimetric calibration of infrared imaging polarimetric sensors
Applied Optics, 2021Polarimetric imaging cameras require polarimetric calibration to accurately estimate the incident Stokes vector of incoming radiation. This calibration establishes a relationship between changes in the sensor signal and incident Stokes vector. In the standard procedure, an imager is presented with a set of input Stokes vectors with two different ...
Sławomir Gogler +5 more
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Polarimetric imaging of amyloid
Micron, 2006New developments in optical microscopy are discussed with relevance to the imaging of amyloid plaques that are pathognomonic of a variety of degenerative disorders. We present the results of linear birefringence, linear dichroism, and circular dichroism imaging of Congo red stained plaques ex vivo and in vitro.
Werner, Kaminksy +6 more
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Polarimetric PALSAR Calibration
IEEE Transactions on Geoscience and Remote Sensing, 2009Polarimetric Phased-Array-type L-band Synthetic Aperture Radar (PALSAR) system parameters are assessed using data sets collected over several calibration sites. The data collected over the Amazonian rain forest help validate the hypothesis that Faraday rotation is zero near the equator.
Ridha Touzi, Masanobu Shimada
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Polarimetric Ultrawideband Radar
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012In this paper the principles of polarimetric Ultrawideband Radar are discussed. First an overview of the state of the art and the theory is given. The calibration principles of polarized UWB Radar data as well as possible imaging algorithms are discussed.
Elke Malz +4 more
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Polarimetric SAR interferometry
IEEE Transactions on Geoscience and Remote Sensing, 1998The authors examine the role of polarimetry in synthetic aperture radar (SAR) interferometry. They first propose a general formulation for vector wave interferometry that includes conventional scalar interferometry as a special case. Then, they show how polarimetric basis transformations can be introduced into SAR interferometry and applied to form ...
Shane R. Cloude, Kostas Papathanassiou
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Optics Letters, 2014
For conventional ghost imaging (GI) systems, the object image is obtained based on the reflective or transmissive character of the object. When the object and its background have the same reflectivity or transmittance, conventional GI is helpless in detecting the object from the background.
Dongfeng, Shi +2 more
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For conventional ghost imaging (GI) systems, the object image is obtained based on the reflective or transmissive character of the object. When the object and its background have the same reflectivity or transmittance, conventional GI is helpless in detecting the object from the background.
Dongfeng, Shi +2 more
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Polarimetric imaging of land in airborne verification experiment for polarimetric scatterometer
2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013Through the effective combination of polarization and interferometry information, PolInSAR can simultaneously measure the three-dimensional spatial structure and scattering properties of the illuminated target, it provides the possibility of extracting the high-precision digital elevation information and slight deformation information of observed ...
Yongjun Cai +4 more
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Analyzing polarimetric signatures for different features in polarimetric SAR data
2014 IEEE Geoscience and Remote Sensing Symposium, 2014The main idea of this research is to provide a graphical representation of various features in polarimetric SAR data. Returned signal from a target contain all polarizations whereas conventional method shows polarimetric information just in a restricted number of polarization bases.
Mohsen Jafari +2 more
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