Results 211 to 220 of about 940,927 (266)

P-Band Radiometry: RFI and Calibration for Uwbrad

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
Advances in RFI detection and filtering have promoted the design of wide-bandwidth radiometers that operate outside the traditional protected radiometry bands. Wideband operation requires the use of components without well-matched impedances, producing multiple reflections within a system that may impact the calibration process.
Mark J. Andrews, Joel T. Johnson, Kenneth C. Jezek, Alexandra Bringer, Marco Brogioni, Giovanni Macelloni, Marion Leduc-Leballeur   +6 more
openaire   +1 more source

P-band feedarray for BIOMASS

2012 6th European Conference on Antennas and Propagation (EUCAP), 2012
This paper deals with feed array suitable to SAR mission employing large reflector antennas (∼10–15m projected diameter). The feed array, in patch technology, is specifically designed to accomplish various mission operative modes in a modular way.
Paolo Valle, Giuseppe Orlando, Roberto Mizzoni, Florence Heliere, Kees van't Klooster   +4 more
openaire   +1 more source

L- and P-band for surface parameter estimation

IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217), 2002
This work presents a first qualitative and quantitative comparison of fully polarimetric SAR data at L- and P-band with respect to surface parameter estimation. The potential combination of these two frequencies in order to obtain more robust estimates and/or to extend the validity range of the inversion algorithms is investigated based on experimental
Hajnsek, I., Papathanassiou, Konstantinos, Cloude, S.R.   +2 more
openaire   +2 more sources

SNOOPI: Demonstrating P-Band Reflectometry from Orbit

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
SigNals Of Opportunity: P-band Investigation (SNOOPI) will be the first on-orbit demonstration of remote sensing using Signals of Opportunity (SoOp) in P-band (240–380 MHz). P-band is needed to penetrate through dense vegetation and into the root zone. The longer wavelength of P-band also increases the unwrapping interval for phase observations.
James L. Garrison, Rashmi Shah, Benjamin Nold, Justin R. Mansell, Manuel A. Vega, Juan C. Raymond, Rajat Bindlish, Mehmet Kurum, Jeffrey Piepmeier, Seho Kim, Roger Banting, Kameron Larsen   +11 more
openaire   +1 more source

P-band SAR Tomography for Forest Type Classification

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
SAR tomography, a technique employing multiple acquisitions over the same areas to form a three-dimensional image, has been demonstrated to improve SAR's capability in many applications. Our study shows the potential value of SAR tomography acquisitions to improve forest classification.
Dinh Ho Tong Minh, Yen-Nhi Ngo, Thu Trang Le   +2 more
openaire   +1 more source

Ice flow mapping with P-band SAR

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
Glacier and ice sheet dynamics are currently mapped with X-, C-, and L-band SAR. With the prospect of a P-band SAR, Biomass, to be launched within the next decade it is interesting to look into the potential of P-band for ice velocity mapping. In this paper first results are presented.
Jørgen Dall, Ulrik Nielsen, Anders Kusk, Roderik S. W. van de Wal   +3 more
openaire   +1 more source

Spaceborne P-band SAR for BIOMASS mission

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
In the frame of the BIOMASS mission promoted by ESA for evaluating and monitoring Earth biomass, the expected performance of a P-band SAR instrument based on very large Direct Radiating Array antenna is addressed, as well as its architecture and the accommodation challenge on a platform.
Sophie Ramongassie, Shadi Khureim Castiglioni, Jérôme Lorenzo, Eric Labiole, Yannick Baudasse, Carlo Svara, Luigi Cereoli, Florence Hélière, Cyril Mangenot, Kees Van't Klooster, Nelson J. G. Fonseca, Hubert Diez, Daniel Belot   +12 more
openaire   +1 more source

Digital Back End for P-Band Reflections Concepts

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
A low cost, low power, and low mass P-band digital back end (DBE) has been developed at JPL. The design is based upon a Global Navigation Satellite System (GNSS) receiver (called Cion) that has been currently flying on the CICERO CubeSats. This paper describes the design of the DBE as well as use cases for the subsystem.
Rashmi Shah, Garth W. Franklin, Kameron Larsen, Devin Cody, Myron Lee   +4 more
openaire   +1 more source

P-band radar ice sounding in Antarctica

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
In February 2011, the Polarimetric Airborne Radar Ice Sounder (POLARIS) was flown in Antarctica in order to assess the feasibility of a potential space-based radar ice sounding mission. The campaign has demonstrated that the basal return is detectable in areas with up to 3 km thick cold ice, in areas with up to several hundred meters thick warm shelf ...
Jørgen Dall, Anders Kusk, Steen S. Kristensen, Ulrik Nielsen, René Forsberg, Chung-Chi Lin, Nicolas Gebert, Tânia Casal, Malcolm Davidson, David Bekaert, Christopher Buck   +10 more
openaire   +1 more source

ANALYSES SUPPORTING SNOOPI: A P-BAND REFLECTOMETRY DEMONSTRATION

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
SigNals of Opportunity: P-band Investigation (SNOOPI) will be an in-space technology demonstration of reflectometry using 240–380 MHz communications transmissions. SNOOPI will both demonstrate essential techniques for root-zone soil moisture (RZSM) and snow water equivalent (SWE) remote sensing as well as provide in-space validation of prototype ...
James L. Garrison, Rashmi Shah, Seho Kim, Jeffrey Piepmeier, Manuel A. Vega, David A. Spencer, Roger Banting, Juan C. Raymond, Benjamin Nold, Kameron Larsen, Rajat Bindlish   +10 more
openaire   +1 more source