Results 21 to 30 of about 119,459 (229)
Frequency-Spectra-Based High Coding Capacity Chipless RFID Using an UWB-IR Approach
Sensors, 2021 A novel methodology is proposed to reliably predict the resonant characteristics of a multipatch backscatter-based radio frequency identification (RFID) chipless tag.
Kawther Mekki +4 more
doaj +1 more source
Evaluating multiple causes of persistent low microwave backscatter from Amazon forests after the 2005 drought [PDF]
, 2017 Amazonia has experienced large-scale regional droughts that affect forest productivity and biomass stocks. Space-borne remote sensing provides basin-wide data on impacts of meteorological anomalies, an important complement to relatively limited ground ...
Braswell, Bobby H. +8 more
core +3 more sources
Towards Including Dynamic Vegetation Parameters in the EUMETSAT H SAF ASCAT Soil Moisture Products
Remote Sensing, 2021 The TU Wien Soil Moisture Retrieval (TUW SMR) approach is used to produce several operational soil moisture products from the Advanced Scatterometer (ASCAT) on the Metop series of satellites as part of the EUMETSAT Satellite Application Facility on ...
Susan C. Steele-Dunne +3 more
doaj +1 more source
Journal of Medical Ultrasound, 2014 Ultrasound Doppler studies have long been used for quantifying blood flow velocity, and microbubble contrast agents can be used to amplify the Doppler signal.
Ipshita Gupta
doaj +1 more source
Calibration of laser scanning intensity data using brightness targets
Geodesy and Cartography, 2012 The paper examines a radiometric calibration method used at the Finnish Geodetic Institute (FGI). The brightness calibration targets and calibration scheme of airborne laser scanner intensity data is observed. For calibrating laser scanner intensity data,
Ants Vain +3 more
doaj +1 more source
Mapping Tropical Forest Biomass by Combining ALOS-2, Landsat 8, and Field Plots Data
Land, 2016 This research was carried out in a dense tropical forest region with the objective of improving the biomass estimates by a combination of ALOS-2 SAR, Landsat 8 optical, and field plots data.
Luong Viet Nguyen +6 more
doaj +1 more source
Electromagnetically Induced Coherent Backscattering [PDF]
Physical Review Letters, 2006 We demonstrate a strong coherent backward wave oscillation using forward propagating fields only. This is achieved by applying laser fields to an ultra-dispersive medium with proper chosen detunings to excite a molecular vibrational coherence that corresponds to a backward propagating wave.
Rostovtsev, Y. +2 more
openaire +4 more sources
Identifying community-driven priority questions in acoustic backscatter research
Frontiers in Remote SensingIntroductionRemotely-sensed acoustic backscatter is an indispensable tool for seabed mapping, among other disciplines. Almost a decade after the GeoHab Backscatter Working Group published its guidelines and recommendations report, new technologies, new ...
Vincent Lecours +8 more
doaj +1 more source
Dynamic Coherent Backscattering Mirror [PDF]
CLEO: 2013, 2013 The phase of multiply scattered light has recently attracted considerable interest. Coherent backscattering is a striking phenomenon of multiple scattered light in which the coherence of light survives multiple scattering in a random medium and is observable in the direction space as an enhancement of the intensity of backscattered light within a cone ...
I. Zeylikovich, M. Xu
openaire +5 more sources
Experiments for multibeam Backscatter Adjustments on the NOAA Ship FAIRWEATHER [PDF]
, 2006 A series of experiments were conducted to adjust and normalize the acoustic backscatter acquired by Reson 8111 and 8160 systems. The dependency of the backscatter on the receiver gain, transmit power, pulse width and acquisition mode was analyzed ...
Calder, Brian R., Fonseca, Luciano E.
core +2 more sources