Results 11 to 20 of about 259,902 (261)

Benefits and Lessons Learned from the Sentinel-3 Tandem Phase [PDF]

open access: yesRemote Sensing, 2020
During its commissioning phase, the Copernicus Sentinel-3B satellite has been placed in a tandem formation with Sentinel-3A for a period of 6 months. This configuration allowed a direct comparison of measurements obtained by the two satellites.
Sébastien Clerc   +15 more
doaj   +4 more sources

Relating Forest Biomass to TanDEM-X Mean Phase Height

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The Copernicus DEM is derived as a mean of TanDEM-X phase heights. It is known that there is an almost linear—but variable—relationship between phase height and above-ground biomass (AGB).
Jan I. H. Askne
doaj   +3 more sources

Phase Tandem Low-Coherence Interferometry for Surface Vibration Measurements

open access: yesSensors
The development of optical methods for surface vibration measurements is currently of great interest. We propose a modified tandem low-coherence technique that utilizes the phase information of the low-coherence signal to detect surface vibrations.
Petr Volkov   +6 more
doaj   +3 more sources

Gas-Phase Fragmentation of Cyclic Oligosaccharides in Tandem Mass Spectrometry [PDF]

open access: yesMolecules, 2019
Modern mass spectrometry, including electrospray and MALDI, is applied for analysis and structure elucidation of carbohydrates. Cyclic oligosaccharides isolated from different sources (bacteria and plants) have been known for decades and some of them ...
Alexander O. Chizhov   +2 more
doaj   +3 more sources

TanDEM-X commissioning phase status [PDF]

open access: yes2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
After the recent launch of the TanDEM-X satellite, the twin of TerraSAR-X, its demanding commissioning phase has started. On the one hand, it has to ensure the same monostatic operation performance as TerraSAR-X. On the other hand, the bistatic aspects have to be verified, which are essential for the acquisition of the global digital elevation model ...
Hueso Gonzalez, Jaime   +2 more
openaire   +2 more sources

Tandem-L: Main results of the phase a feasibility study [PDF]

open access: yes2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
Tandem-L is a highly innovative SAR satellite mission for the global observation of dynamic processes on the Earth's surface with hitherto unknown quality and resolution. Thanks to its novel imaging techniques and its unprecedented acquisition capacity, Tandem-L will deliver urgently needed information for the solution of pressing scientific questions ...
Krieger, Gerhard   +30 more
openaire   +3 more sources

Operational aspects of the TanDEM-X Science Phase [PDF]

open access: yesSpaceOps 2016 Conference, 2016
In the years 2010-2014 the satellites TSX and TDX collected all the Synthetic Aperture Radar (SAR) data necessary to fulfill the primary TanDEM-X mission objective: the generation of a global digital elevation model with unprecedented accuracy. In September 2014, when the necessary data set was almost complete, a transition to the so-called science ...
Maurer, Edith   +5 more
openaire   +1 more source

Quad Performances and Manoeuvrability of TWQH platform [PDF]

open access: yesINCAS Bulletin, 2022
Accurate dynamic modelling of the Tandem Wing Quadcopter Hybrid (TWQH) platform is becoming increasingly important, as strict requirements are progressively being imposed on the UAV (unmanned aerial vehicles) control system in the transition phase from ...
Achim IONITA   +2 more
doaj   +1 more source

Effects of varying proportions of concentrates on ruminal-reducing power and bacterial community structure in dry dairy cows fed hay-based diets

open access: yesAnimal, 2010
The objectives of this study were to evaluate the influence of diet composition on ruminal parameters, more particularly redox potential (Eh). Four Holstein dry dairy cows, fitted with ruminal cannulas, were allocated in a 4 × 4 Latin square design. They
C. Julien   +6 more
doaj   +1 more source

Tandem Mach Zehnder Directional Coupler Design and Simulation on Silicon Platform for Optical Coherence Tomography Applications

open access: yesSensors, 2020
We design and compare the splitting ratio wavelength flatness of directional coupler (DC), Mach-Zehnder directional coupler (MZDC), and tandem MZDC.
Yi-Ting Lu   +3 more
doaj   +1 more source

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