Results 41 to 50 of about 2,679,915 (389)
Relaying systems with reciprocity mismatch : impact analysis and calibration [PDF]
, 2020 Cooperative beamforming can provide significant performance improvement for relaying systems with the help of the channel state information (CSI). In time-division duplexing (TDD) mode, the estimated CSI will deteriorate due to the reciprocity mismatch ...
Chen, Li +5 more
core +1 more source
Research and verification of internal and external measurement methods of large oil storage tanks capacity based on 3D lasers canning [PDF]
E3S Web of Conferences, 2021 Nowadays, as an important tool for petrochemical enterprises to store and transport various petrochemical products, large oil storage tanks are highly praised by a large number of oil enterprises because of their characteristics of large capacity and ...
Chen Xianlei +9 more
doaj +1 more source
FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View
Sensors, 2020 Limited by the on-orbital calibration capability, scaling the measured radiance in accuracy and stability is challenging for the Earth observation satellites in the reflective solar bands (RSBs).
Ronghua Wu +6 more
doaj +1 more source
Calibration of the Computer Science and Applications, Inc. accelerometer.
Medicine & Science in Sports & Exercise, 1998 PURPOSE We established accelerometer count ranges for the Computer Science and Applications, Inc. (CSA) activity monitor corresponding to commonly employed MET categories.
P. Freedson, E. Melanson, J. Sirard
semanticscholar +1 more source
Earth System Science Data, 2020 . The nighttime light (NTL) satellite data have been widely used to investigate the urbanization process. The Defense Meteorological Satellite Program Operational Linescan System (DMSP-OLS) stable nighttime light data and Suomi National Polar-orbiting ...
Zuoqi Chen +8 more
semanticscholar +1 more source
First M87 Event Horizon Telescope Results. III. Data Processing and Calibration [PDF]
Astrophysical Journal, 2019 We present the calibration and reduction of Event Horizon Telescope (EHT) 1.3 mm radio wavelength observations of the supermassive black hole candidate at the center of the radio galaxy M87 and the quasar 3C 279, taken during the 2017 April 5–11 ...
Kazunori Akiyama +216 more
semanticscholar +1 more source
A Remotely Controlled Calibrator for Chemical Pollutant Measuring-Units [PDF]
, 2007 The increasing diffusion of pollutant measuring units, which are installed over wide areas, along with the short calibration interval of several sensors for pollutant quantities, requires new calibration infrastructures to be developed.
Carullo, Alessio +2 more
core +1 more source
Geometric calibration of Colour and Stereo Surface Imaging System of ESA's Trace Gas Orbiter [PDF]
, 2017 There are many geometric calibration methods for "standard" cameras. These methods, however, cannot be used for the calibration of telescopes with large focal lengths and complex off-axis optics.
Cremonese, Gabriele +7 more
core +2 more sources
KONA Powder and Particle Journal, 2014 A PM1.0/2.5/10 Trichotomous sampler has been developed to determine if the particles in the saddle point between the coarse and fine particle modes (specifically the 1.0 μm to 2.5 μm size range) are primarily
Virgil Marple +2 more
doaj +1 more source
Quasi-continuous time-stretched photon Doppler velocimetry
Frontiers in Physics, 2022 In transient high-speed scenes such as chemical explosions, magnetic compression, electric explosion, and laser-driven flyer, the target object can accelerate from 0 to tens of km/s in a few nanoseconds. The time-stretched photon Doppler velocimetry uses
Linjie Lv +8 more
doaj +1 more source