Results 131 to 140 of about 2,770 (190)

Array-Fed Microwave Radiometer

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
Modern multi-band radiometer imagers are designed trading spatial resolution, spectral coverage, and surface sampling characteristics to optimize science return. In this process, trades must be made to usually under-sample the Earth scene. Care is taken to obtain contiguous 3-dB edge-to-edge coverage, but even so, such a design still aliases high ...
Jeffrey Piepmeier, Thomas Holmes, Rafael F. Rincon, Ali Mahnad, Jinzheng Peng, Paul Racette, Giovanni De Amici, Jared Jordan, Will Stacey   +8 more
openaire   +1 more source

An Enhanced Product for the Fsscat Microwave Radiometer

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
In this study, an enhanced spatial resolution product is proposed for the forthcoming L-band microwave radiometer operated on board of the FSSCat mission. The product is obtained reconstructing the brightness temperature on a finer spatial resolution grid using an antenna pattern deconvolution method.
Alparone M., Camps A., Nunziata F., Migliaccio M.   +3 more
openaire   +2 more sources

Detecting RFI using microwave radiometers

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
Generally the disturbing effect of an unintentionally received electromagnetic signal is called radio frequency interference (RFI). Since microwave radiometers are the most sensitive devices for the detection and monitoring of electromagnetic radiation they are highly susceptible for any interference signal.
Peichl, Markus, Dill, Stephan
openaire   +1 more source

A Multifrequency Microwave Radiometer

[Proceedings] IGARSS'91 Remote Sensing: Global Monitoring for Earth Management, 2005
A three-frequency microwave radiometer was completed in 1990 in the Laboratory of Space Technology, HUT. The instrumentwas designed to be installed onboard a helicopter. Functional description of the radiometer will be given along with its performance parameters. The radiometer is used for remote sensing of snow, ice and forest.
E. Panula-Ontto, L. Kurvonen, M. Hallikainen   +2 more
openaire   +1 more source

Microwave radiometer spatial resolution enhancement

IEEE Transactions on Geoscience and Remote Sensing, 2005
Scanning radiometer data processing can allow enhancing the limited intrinsic spatial resolution. This is important for data fusion. Mathematically, the problem to be solved is an inverse ill-posed problem. In this paper we compare the classical Backus-Gilbert inversion method with the truncated singular value decomposition (TSVD) one.
MIGLIACCIO, Maurizio, GAMBARDELLA A.
openaire   +2 more sources

On the Superresolution of Microwave Scanning Radiometer Measurements

IEEE Geoscience and Remote Sensing Letters, 2008
Microwave radiometer measurements are exploited to extract important geophysical information. Although it is beneficial to merge different frequency channels, it requires extra effort to refer all measurements to a common spatial resolution. Therefore, the capability to enhance the spatial resolution of a single channel is of special interest.
A. GAMBARDELLA, MIGLIACCIO, Maurizio
openaire   +1 more source

Fire Emissivity Detection by a Microwave Radiometer

IEEE Geoscience and Remote Sensing Letters, 2015
In this letter, the detectability of fire by a microwave radiometer is investigated. In order to understand the fire from a radiometric point of view, the parameters of fire emissivity had to be determined. Therefore, representative fire types were analyzed, and fire spot emissivity values have been derived from measured data.
Petr Dvorak, Milos Mazanek, Stanislav Zvanovec   +2 more
openaire   +1 more source

On the sensitivity of fire detection by a microwave radiometer

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
In the paper the detectability of a fire by a microwave radiometer is investigated. Simulations of several scenarios and together with outdoor measurement were performed in order to confirm detectability of the fire of specific temperature distributions and dimensions. Various scenarios for fire sensing were numerically modeled and simulated.
Petr Dvorak, Stanislav Zvanovec
openaire   +1 more source

Handheld microwave radiometer for education and outreach

Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005
This investigation features a low-cost (
Eric Chikando, Jeffrey R. Piepmeier, Anuradha Dujari, Carl White   +3 more
openaire   +1 more source

SMAP Microwave Radiometer Calibration Revisit

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
The SMAP L-band microwave radiometer has completed its 3-year primary mission of measuring soil moisture and freeze/thaw state globally for quantifying the water and carbon cyclces. Instrument behavior is stable over the past 3 years and 9 months.
Jinzheng Peng, Sidharth Misra, Jeffrey Piepmeier, Simon Yueh, Emmanuel P. Dinnat, David M. Le Vine, Thomas Meissner, Priscilla N. Mohammed   +7 more
openaire   +1 more source