Results 1 to 10 of about 630,501 (231)

Polarimetric Calibration Technique for a Fully Polarimetric Entomological Radar Based on Antenna Rotation

open access: yesRemote Sensing, 2022
For entomological radar, the polarization information of the target is usually used to estimate the biological parameters, such as orientation, body length, and mass, of the insect.
Teng Long, Cheng Hu, Huafeng Mao
exaly   +3 more sources

Polarimetric Radar Quantitative Precipitation Estimation

open access: yesRemote Sensing, 2022
Radar quantitative precipitation estimation (QPE) is one of the primary tasks of weather radars. The QPE quality was substantially improved after polarimetric upgrade of the radars.
Alexander Ryzhkov   +4 more
doaj   +2 more sources

Polarimetric Calibration of the Ku-Band Advanced Polarimetric Radar Interferometer [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2018
Differential interferometry using ground-based radar systems permits to monitor displacements in natural terrain with high flexibility in location, time of acquisition, and revisit time. In combination with polarimetric imaging, discrimination of different scattering mechanisms present in a resolution cell can be obtained simultaneously with the ...
Simone Baffelli   +2 more
exaly   +5 more sources

A Radio Frequency Interference Mitigation Method for Polarimetric Doppler Weather Radars

open access: yesLeida xuebao, 2021
To mitigate Radio Frequency Interference (RFI) for polarimetric Doppler weather radars, this paper proposes to use spectral polarimetric filters. Polarimetric weather radars can be divided into two basic categories: Simultaneously Transmitting and ...
Jiapeng YIN   +4 more
doaj   +1 more source

A Polarimetric Radar Operator and Application for Convective Storm Simulation

open access: yesAtmosphere, 2022
In this study, a polarimetric radar forward model operator was developed for the Weather Research and Forecasting (WRF) model that was based on a scattering algorithm using the T-matrix methodology. Three microphysics schemes—Thompson, Morrison 2-moment,
Xuanli Li   +4 more
doaj   +1 more source

Polarimetric Portraits

open access: yesEarth and Space Science, 2021
“Fully polarimetric” in its original radio science usage denotes a receiving instrument's ability to measure the four‐parameter Stokes vector characterizing the polarimetric properties of an electro‐magnetic (EM) field.
R. Keith Raney
doaj   +1 more source

Clutter Mitigation Based on Spectral Depolarization Ratio for Dual-Polarization Weather Radars

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, a spectral polarimetric filter named moving spectral depolarization ratio (MsDR) filter is proposed to mitigate the effects of clutter and noise for dual-polarization weather radar without cross-polar measurements. The filter is based on
Jiapeng Yin   +3 more
doaj   +1 more source

An Inverse Method for Drop Size Distribution Retrieval from Polarimetric Radar at Attenuating Frequency

open access: yesRemote Sensing, 2022
A method that formulates the retrieval of drop size distribution (DSD) parameters from polarimetric radar variables at attenuating frequency as the solution of an inverse problem is presented.
Matias Alcoba   +2 more
doaj   +1 more source

What Polarimetric Weather Radars Offer to Cloud Modelers: Forward Radar Operators and Microphysical/Thermodynamic Retrievals

open access: yesAtmosphere, 2020
The utilization of polarimetric weather radars for optimizing cloud models is a next frontier of research. It is widely understood that inadequacies in microphysical parameterization schemes in numerical weather prediction (NWP) models is a primary cause
Alexander V. Ryzhkov   +4 more
doaj   +1 more source

Calibration of radars using polarimetric techniques [PDF]

open access: yesIEEE 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   +2 more
openaire   +2 more sources

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