Results 31 to 40 of about 20,327 (141)

Sentinel-1 Backscatter Time Series for Characterization of Evapotranspiration Dynamics over Temperate Coniferous Forests

Remote Sensing, 2022
Forests’ ecosystems are an essential part of the global carbon cycle with vast carbon storage potential. These systems are currently under external pressures showing increasing change due to climate change.
Marlin M. Mueller, Clémence Dubois, Thomas Jagdhuber, Florian M. Hellwig, Carsten Pathe, Christiane Schmullius, Susan Steele-Dunne   +6 more
doaj   +1 more source

Feasibility of Backscatter Communication Using LoRAWAN Signals for Deep Implanted Devices and Wearable Applications

Sensors, 2020
This paper presents a method for low data rate transmission for devices implanted in the body using backscattered Long Range (LoRa) signals. The method uses an antenna loaded with a switch that changes between two load impedances at the rate of a ...
Marc Lazaro, Antonio Lazaro, Ramon Villarino   +2 more
doaj   +1 more source

Non-Coherent and Backscatter Communications: Enabling Ultra-Massive Connectivity in 6G Wireless Networks

IEEE Access, 2021
With the commencement of the 5th generation (5G) of wireless networks, researchers around the globe have started paying their attention to the imminent challenges that may emerge in the beyond 5G (B5G) era.
Syed Junaid Nawaz, Shree Krishna Sharma, Babar Mansoor, Mohammad N. Patwary, Noor M. Khan   +4 more
doaj   +1 more source

Quad-Polarimetric Multi-Scale Analysis of Icebergs in ALOS-2 SAR Data: A Comparison between Icebergs in West and East Greenland

Remote Sensing, 2020
Icebergs are ocean hazards which require extensive monitoring. Synthetic Aperture Radar (SAR) satellites can help with this, however, SAR backscattering is strongly influenced by the properties of icebergs, together with meteorological and environmental ...
Johnson Bailey, Armando Marino
doaj   +1 more source

Harmonizing Multi-Source Sonar Backscatter Datasets for Seabed Mapping Using Bulk Shift Approaches

Remote Sensing, 2020
The development of multibeam echosounders (MBES) as a seabed mapping tool has resulted in the widespread uptake of backscatter intensity as an indicator of seabed substrate properties.
Benjamin Misiuk, Craig J. Brown, Katleen Robert, Myriam Lacharité   +3 more
doaj   +1 more source

BackProx: Secure Backscatter-Assisted Proximity Detection for Passive Keyless Entry and Start Systems

Sensors, 2023
A passive keyless entry and start (PKES) system is an electronic lock for an automobile that provides the great convenience of opening the door when the user is in proximity. However, the system suffers from relay attacks.
Hoorin Park, Jeongkyu Hong
doaj   +1 more source

Vertical Structure and Energetic Constraints for a Backscatter Parameterization of Ocean Mesoscale Eddies

Journal of Advances in Modeling Earth Systems
Mesoscale eddies modulate the stratification, mixing, tracer transport, and dissipation pathways of oceanic flows over a wide range of spatiotemporal scales.
Elizabeth Yankovsky, Scott Bachman, K. Shafer Smith, Laure Zanna   +3 more
doaj   +1 more source

A Stable Implementation of a Data‐Driven Scale‐Aware Mesoscale Parameterization

Journal of Advances in Modeling Earth Systems
Ocean mesoscale eddies are often poorly represented in climate models, and therefore, their effects on the large scale circulation must be parameterized.
Pavel Perezhogin, Cheng Zhang, Alistair Adcroft, Carlos Fernandez‐Granda, Laure Zanna   +4 more
doaj   +1 more source

Simplifying Backscatter Deployment: Full-Duplex LoRa Backscatter

, 2020
Due to the practical challenges in the deployment of existing half-duplex systems, the promise of ubiquitous backscatter connectivity has eluded us. To address this, we design the first long-range full-duplex LoRa backscatter reader. We leverage existing LoRa chipsets as transceivers and use a microcontroller in combination with inexpensive passive ...
Katanbaf, Mohamad, Weinand, Anthony, Talla, Vamsi   +2 more
openaire   +2 more sources

L‐band depolarised radar back scattering from Martian topographic surface: A numerical study

IET Radar, Sonar & Navigation, 2021
The interaction of radar signals with a planetary surface is critical for the utility of radar data. Herein, a power‐law roughness spectrum is used to model the roughness and an inhomogeneous vertical permittivity to describe the dielectrics from the ...
Ying Yang, Yu Liu, Kun‐Shan Chen, Jingwen Li   +3 more
doaj   +1 more source