Zobrazeno 1 - 10
of 350
pro vyhledávání: '"polarimetric calibration"'
Publikováno v:
Leida xuebao, Vol 12, Iss 2, Pp 425-440 (2023)
Migratory pests are sudden outbreaks and widespread, putting national food security at risk. Entomological radar is most effective segment in monitoring insect migration, providing critical information for early warning and pest control. Traditional
Externí odkaz:
https://doaj.org/article/355b9a4d9798483db40770bab64d1d81
Publikováno v:
Photonics, Vol 10, Iss 8, p 929 (2023)
A polarization analysis method based on a multi-parameter model is proposed to address the polarization effect analysis and calibration requirements of a dual-coded snapshot spectral polarization imaging system. A full-link polarization effect model
Externí odkaz:
https://doaj.org/article/22dca09a9b1246cba7ca79673eef5200
Publikováno v:
Remote Sensing, Vol 15, Iss 9, p 2345 (2023)
During the process of the airborne synthetic aperture radar (SAR) system platform in space, platform attitude deflection is inevitable. However, large attitude deflection angles are unacceptable for polarimetric calibration using point targets, espec
Externí odkaz:
https://doaj.org/article/bb3340cd3e5946e096850aecbf3e176d
Publikováno v:
Remote Sensing, Vol 15, Iss 7, p 1810 (2023)
The calibration of channel imbalances is currently the main concern in polarimetric calibration (POLCAL) since the crosstalk of recent polarimetric synthetic aperture radar (Pol-SAR) systems is lower than −20 dB. The existing channel imbalance cali
Externí odkaz:
https://doaj.org/article/448c21ff7353458ebc3faed3454d8a20
Publikováno v:
Remote Sensing, Vol 15, Iss 6, p 1605 (2023)
GaoFen-3 was the first Chinese civilian C-band synthetic aperture radar (SAR) satellite, launched in August 2016. The need for monitoring the satellite’s image quality has been boosted by its widespread applications in various fields. The efficient
Externí odkaz:
https://doaj.org/article/e5fd59c9f01c45d69c219fbbd409a9a3
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 440-451 (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. The influ
Externí odkaz:
https://doaj.org/article/4dc744d80e3d433796d8f79107cfdba1
Publikováno v:
IEEE Access, Vol 8, Pp 7659-7671 (2020)
The parameters for polarization distortion of spaceborne polarimetric synthetic aperture radar (SAR) have range-dependence (or look-angle-dependence), which requires a polarimetric calibration to be performed at any look-angle. It is a huge endeavor
Externí odkaz:
https://doaj.org/article/a25e84e100ac4b268a89a0fea888b583
Autor:
Weibin Liang
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 2502-2519 (2020)
Freeman proposed a general polarimetric system model in 1991 for the characterization and calibration of fully polarimetric synthetic aperture radar (SAR) systems. The model contains three-channel imbalance parameters and four cross-talk parameters,
Externí odkaz:
https://doaj.org/article/771c99d9c4b340f39d078e8fdd51660a
Publikováno v:
Remote Sensing, Vol 15, Iss 5, p 1252 (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
Externí odkaz:
https://doaj.org/article/26747a2804bf4c1b883c80d680d83567
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 104, Iss , Pp 102559- (2021)
Polarimetric synthetic aperture radar is an important technology for Earth observation. Generally, polarimetric calibration (PolCAL) should be performed before any quantitative applications. The reflection symmetric targets can relieve the dependence
Externí odkaz:
https://doaj.org/article/79d804413a944d7592bff076dd41113c