Results 11 to 20 of about 489,746 (209)

An Efficient Polarimetric SAR Calibration Algorithm Using Corner Reflectors

Canadian Journal of Remote Sensing, 2017
Fully polarimetric synthetic aperture radar (SAR) has been widely used in applications, such as ground parameter inversion and classification. However, to accurately decipher the information contained in the polarimetric characteristics of an illuminated
Guangde Sun, Lei Huang, Kunshan Chen, Chunming Han   +3 more
doaj   +2 more sources

A handheld polarimetric imaging device and calibration technique for accurate mapping of terahertz Stokes vectors [PDF]

Scientific Reports
In recent years, handheld and portable terahertz instruments have been in rapid development for various applications ranging from non-destructive testing to biomedical imaging and sensing.
Zachery B. Harris, Kuangyi Xu, M. Hassan Arbab   +2 more
doaj   +2 more sources

Polarimetric calibration of SAR images using reflection symmetric targets with low helix scattering

International Journal of Applied Earth Observations and Geoinformation, 2021
Polarimetric synthetic aperture radar is an important technology for Earth observation. Generally, polarimetric calibration (PolCAL) should be performed before any quantitative applications.
Yonglei Chang, Lingli Zhao, Lei Shi, Yunju Nie, Zhenyang Hui, Qiulin Xiong, Pingxiang Li   +6 more
doaj   +1 more source

A Reflection Symmetric Target Extraction Method Based on Hypothesis Testing for PolSAR Calibration

Remote Sensing, 2023
Polarimetric calibration is indispensable to quantitatively apply and analyze the polarimetric synthetic aperture radar (PolSAR) image. At present, the polarimetric calibration methods relying on the assumption of reflection symmetry have been widely ...
Bowen Chi, Jixian Zhang, Lijun Lu, Shucheng Yang, Guoman Huang, Xu Gao   +5 more
doaj   +1 more source

Calibration of a polarimetric imaging SAR [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 1992
Calibration using point targets is discussed. The fourport network calibration technique is used to describe the radar error model. The processor ambiguity function and the radar distortion matrices are combined to form a generalized polarimetric ambiguity function.
Kamal Sarabandi, Leland E. Pierce, Fawwaz T. Ulaby   +2 more
openaire   +2 more sources

The NICMOS Polarimetric Calibration [PDF]

Publications of the Astronomical Society of the Pacific, 2006
The value of accurately knowing the absolute calibration of the polarizing elements in the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) becomes especially important when conducting studies which require measuring degrees of polarization of close to 1% in the near infrared.
Batcheldor, D., Robinson, A., Axon, D., Hines, D. C., Sparks, W., Tadhunter, C.   +5 more
openaire   +2 more sources

Performance of SAR Polarimetric Calibration Using Hybrid Corner Reflectors: Numerical Simulations and Experimental Measurements

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, we devise a polarimetric calibration method utilizing only three types of calibration targets, i.e., trihedral, dihedral, and a 22.5°-rotated dihedral corner reflectors and requiring no assumptions on the scene statistics.
Suyun Wang, Kun-Shan Chen, Motoyuki Sato
doaj   +1 more source

POLARIMETRIC CALIBRATION AND ASSESSMENT OF GF-3 IMAGES IN STEPPE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The GaoFen-3 (GF-3) satellite is the first fully polarimetric synthetic aperture radar (PolSAR) satellite in China. It has three fully polarimetric imaging modes and is available for many applications.
Y. Chang, J. Yang, P. Li, L. Shi, L. Zhao, L. Zhao   +5 more
doaj   +1 more source

Calibration of radars using polarimetric techniques [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 1992
A method that uses the properties of rain medium itself to obtain accurate weather radar system gain calibration is discussed. This technique is based on the principle that the rainfall rate measured using absolute reflectivity (Z) and differential reflectivity (Z/sub DR/) is the same as that obtained from specific differential phase (K/sub DP/).
Eugenio Gorgucci, Gianfranco Scarchilli, V. Chandrasekar 0001   +2 more
openaire   +2 more sources

Polarimetric calibration strategy for long-duration imaging with a ground-based SAR [PDF]

, 2005
The Ground-Based Synthetic Aperture Radar (GB-SAR) facility in the UK provides high-resolution, fully polarimetrically calibrated L- through X-band SAR imagery, principally of targets of remote sensing interest such as soils and vegetation.
Morrison, Keith, Cookmartin, Geoff, J C Bennett, Bennett, J. C., Race, A., Quegan, Shaun, K. Morrison, A. Race, G. Cookmartin, S. Quegan   +9 more
core   +1 more source