Results 41 to 50 of about 489,746 (209)

Error Source Analysis and Correction of GF-3 Polarimetric Data

open access: yesRemote Sensing, 2018
The GaoFen-3 (GF-3) satellite is the first polarimetric synthetic aperture radar (PolSAR) satellite in China. With a designed in-orbit life of 8 years, it will provide large amounts of PolSAR data for ocean monitoring, disaster reduction, and many other ...
Sha Jiang   +4 more
doaj   +1 more source

Development of a Polarimetric 50-GHz Spectrometer for Temperature Sounding in the Middle Atmosphere

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This article addresses the further development of the ground-based temperature radiometer TEMPERA, which measures atmospheric microwave radiation in one linear polarization in order to retrieve temperature profiles up to an altitude of 50 km (Stä ...
Witali Krochin, Gunter Stober, Axel Murk
doaj   +1 more source

C-SAR/02 Satellite Polarimetric Calibration and Validation Based on Active Radar Calibrators

open access: yesRemote Sensing
Quad-polarization synthetic aperture radar (SAR) satellites are important detection tools in Earth observation and remote sensing; in particular, they are of great significance for accurately interpreting radar data and inverting geophysical parameters ...
Yanan Jiao   +4 more
doaj   +1 more source

Optimised limit for polarimetric calibration of fully polarised SAR systems

open access: yesElectronics Letters, 2016
The optimised limit for polarimetric calibration of fully polarised synthetic aperture radar systems is derived by establishing an error model as a function of cross‐talk, channel imbalance and system noise. Compared with noise equivalent sigma zero, the
Jie Chen, Wei Guo, Zhuo Li, Wei Liu
doaj   +1 more source

A Three-Hierarchy Evaluation of Polarimetric Performance of GF-3, Compared with ALOS-2/PALSAR-2 and RADARSAT-2

open access: yesSensors, 2019
GaoFen-3 (GF-3) is the first Chinese civilian multi-polarization synthetic aperture radar (SAR) satellite, launched on 10 August of 2016, and put into operation at the end of January 2017.
Zezhong Wang   +3 more
doaj   +1 more source

Polarimetric SAR cross-calibration method based on stable distributed targets

open access: yesGeo-spatial Information Science
Polarimetric calibration is essential for the pre-processing of Polarimetric Synthetic Aperture Radar (PolSAR) data because it effectively mitigates polarimetric distortions in the measured PolSAR data.
Yongsheng Zhou   +5 more
doaj   +1 more source

POLARIMETRIC CALIBRATION OF L-BAND AIRBORNE SAR DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The PolSAR calibration ensures that the relationship between the SAR observations and the target characteristics on the ground are consistent and resembles the theoretical estimation which in turn improves the overall data quality.
A. Maiti   +3 more
doaj   +1 more source

Polarimetric Calibration for a Ground-Based Radar, and Comparison of the Polarimetric Parameters with Air-Borne SAR Obtained from a Forest

open access: yesRemote Sensing, 2017
A polarimetric ground-based radar (GB-radar) system operated in the L-band has been developed. The frequency range of GB-radar is 1.215 to 1.3 GHz, which is the same as that of Japanese satellite-borne SAR, PALSAR-2 (Phased Array type L-band Synthetic ...
Manabu Watanabe, Masanobu Shimada
doaj   +1 more source

Airborne polarimetric Doppler weather radar: trade-offs between various engineering specifications [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2018
NCAR EOL is investigating potential configurations for the next-generation airborne phased array radar (APAR) that is capable of retrieving dynamic and microphysical characteristics of clouds and precipitation. The APAR will operate at C band.
J. Vivekanandan, E. Loew
doaj   +1 more source

Hybrid Compact Polarimetric SAR Calibration Considering the Amplitude and Phase Coefficients Inconsistency

open access: yesRemote Sensing, 2022
Calibration using corner reflectors is an effective way to estimate the distortion parameters of hybrid compact polarimetric (HCP) synthetic aperture radar (SAR) systems.
Wentao Hou   +6 more
doaj   +1 more source

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