Results 11 to 20 of about 249,250 (259)

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   +2 more sources

Parameterized Modeling and Calibration for Orbital Error in TanDEM-X Bistatic SAR Interferometry over Complex Terrain Areas

open access: yesRemote Sensing, 2021
The TerraSAR-X add-on for Digital Elevation Measurements (TanDEM-X) bistatic system provides high-resolution and high-quality interferometric data for global topographic measurement. Since the twin TanDEM-X satellites fly in a close helix formation, they
Huiqiang Wang   +8 more
doaj   +1 more source

Assessment of the “Zero-Bias Line” Homogenization Method for Microwave Radiometers Using Sentinel-3A and Sentinel-3B Tandem Phase

open access: yesRemote Sensing, 2020
The long-term stability of microwave radiometers (MWR) on-board altimetry missions is critical to reduce the uncertainty on the global mean sea level estimate.
Bruno Picard   +5 more
doaj   +1 more source

OLCI A/B Tandem Phase Analysis, Part 3: Post-Tandem Monitoring of Cross-Calibration from Statistics of Deep Convective Clouds Observations

open access: yesRemote Sensing, 2020
This study is a follow-up of a full methodology for the homogenisation and harmonisation of the two Ocean and Land Colour Instrument (OLCI) payloads based on the OLCI-A/OLCI-B tandem phase analysis.
Nicolas Lamquin   +3 more
doaj   +1 more source

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

OLCI A/B Tandem Phase Analysis, Part 1: Level 1 Homogenisation and Harmonisation

open access: yesRemote Sensing, 2020
Copernicus is a European system for monitoring the Earth in support of European policy. It includes the Sentinel-3 satellite mission which provides reliable and up-to-date measurements of the ocean, atmosphere, cryosphere, and land.
Nicolas Lamquin   +3 more
doaj   +1 more source

Simultaneous determination of 10 N-nitrosamines in drinking water by tandem solid phase extraction-gas chromatography tandem mass spectrometry

open access: yes环境与职业医学, 2022
BackgroundN-nitrosamines, a group of by-products of drinking water disinfection, have strong cytotoxicity to mammals. N-nitrosamines in drinking water are at the ng·L−1 level, and its accurate qualitative and quantitative analysis is difficult, so it is ...
Dengkun LI   +5 more
doaj   +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

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