Results 61 to 70 of about 284 (118)
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Remote sensing of soil moisture using P-band signals of opportunity (SoOp): Initial results
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Initial results from the first airborne campaign to evaluate P-band reflectometry for soil moisture remote sensing are presented. P-band radiation has a penetration depth of 10–20 cm, compared to around 5 cm for L-band. This offers the possibility of measuring Root-Zone Soil Moisture (RZSM), a capability that does not presently exist in spaceborne ...
James Garrison +7 more
openaire +2 more sources
Ocean Roughness and Wind Measurements with L- and S-Band Signals of Opportunity (SoOp) Reflectometry
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018Dual-polarized reflected signals from GNSS (Global Navigation Satellite System) L-band and SDARS (Satellite Digital Audio Radio Service) S-band transmissions were collected during the 2016 Maine and 2017 Carolina Offshore airborne experiments conducted by Purdue and NRL (Naval Research Lab).
Han Zhang +2 more
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International Conference on Electromagnetics in Advanced Applications, 2023
Signals of Opportunity reflectometry (SoOp-R) employs existing non-cooperative transmitters as sources of illumination in bistatic radar. In the typical application, these sources are communication satellites.
James L. Garrison +6 more
semanticscholar +1 more source
Signals of Opportunity reflectometry (SoOp-R) employs existing non-cooperative transmitters as sources of illumination in bistatic radar. In the typical application, these sources are communication satellites.
James L. Garrison +6 more
semanticscholar +1 more source
A Mission Design Tool for Satellite Constellations Using Multi-Frequency Signals of Opportunity
IEEE International Geoscience and Remote Sensing Symposium, 2023Multi-frequency and multi-polarization Signals of Opportunity Reflectometry (SoOp-R) has the potential to monitor global root-zone soil moisture (RZSM) at a high spatiotemporal resolution using a constellation of small satellites. This paper introduces a
Seho Kim, James L. Garrison
semanticscholar +1 more source
Conformal Multi-Service Antenna Arrays: Hybrid In Situ & Signal of Opportunity (SoOP) Calibration
2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall), 2020Current day commercial aircrafts are equipped with numerous communications and navigation systems that are considered in isolation, leading to a stove-pipe design. Antennae supporting these services, protrude from the aircraft's body increasing drag and, as a result, fuel consumption.
Sharanya Srinivas, Daniel W. Bliss
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Recent Results from P-Band Signals of Opportunity Receiver Deployed on a Multi-Copter Uas Platform
IEEE International Geoscience and Remote Sensing Symposium, 2022P-band Signals of Opportunity (SoOp) is an innovative technique that shows promise for many earth observation ap-plications including remote sensing of root-zone soil mois-ture (RZSM), above-ground biomass (AGB), and snow water equivalent (SWE).
M. Kurum +4 more
semanticscholar +1 more source
Multi-Frequency Signals of Opportunity Soil Moisture Retrievals for Agricultural Applications
IEEE International Geoscience and Remote Sensing Symposium, 2022Root-zone soil moisture (RZSM) is one of the least measured hydrological variables despite its critical role in understanding the global carbon cycle and forecasting agricultural drought and food production.
Seho Kim +4 more
semanticscholar +1 more source
IEEE International Geoscience and Remote Sensing Symposium, 2022
Signals of Opportunity (SoOp) remote sensing utilizes existing non-cooperative microwave transmitters as sources of illumination. Knowledge of the SoOp source's Effective Isotropic Radiated Power (EIRP) is required for accurate calibration of a SoOp ...
Benjamin R. Nold, M. Vega, J. Garrison
semanticscholar +1 more source
Signals of Opportunity (SoOp) remote sensing utilizes existing non-cooperative microwave transmitters as sources of illumination. Knowledge of the SoOp source's Effective Isotropic Radiated Power (EIRP) is required for accurate calibration of a SoOp ...
Benjamin R. Nold, M. Vega, J. Garrison
semanticscholar +1 more source