Results 21 to 30 of about 249,250 (259)
Sensors, 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
Large-baseline InSAR for precise topographic mapping: a framework for TanDEM-X large-baseline data [PDF]
Advances in Radio Science, 2017 The global Digital Elevation Model (DEM) resulting from the TanDEM-X mission provides information about the world topography with outstanding precision.
M. Pinheiro, A. Reigber, A. Moreira
doaj +1 more source
TanDEM-X: 10 Years of Formation Flying Bistatic SAR Interferometry
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 On June 21, 2010, the TanDEM-X mission was launched and opened a new era in spaceborne radar remote sensing. The first formation flying radar system was built by extending the TerraSAR-X synthetic aperture radar (SAR) mission by a second, TerraSAR-X-like
Manfred Zink +12 more
doaj +1 more source
Discrete and Continuous Models and Applied Computational Science, 2021 Due to a multistage nature of transmission processes in heterogeneous 4G, 5G mobile networks, multiphase queuing systems become one of the most suitable ways for the resource allocation algorithms analysis and network investigation.
Tatiana V. Rykova
doaj +1 more source
Effect of phase angle on tandem flapping-wing power generation [PDF]
International Journal of Energy Production and Management, 2017 This study is funded by the Scientific and Technological Research Council of Turkey (TUBITAK) Grant 214M385.
Karakas, F., Fenercioglu, I.
openaire +2 more sources
Benefits of a second tandem flight phase between two successive satellite altimetry missions for assessing instrumental stability [PDF]
Ocean ScienceFive successive reference missions, TOPEX/Poseidon, Jason-1, Jason-2, Jason-3, and more recently Sentinel-6 Michael Freilich, have ensured the continuity and stability of the satellite altimetry data record. Tandem flight phases have played a key role in
M. Ablain +7 more
doaj +1 more source
Archives of Rehabilitation Research and Clinical Translation, 2022 Objective: To assess the utility of a 10-second tandem stance test in predicting gait impairment and the need for a mobility aid. Design: Cross-sectional study. Setting: Public hospital ambulatory and hospitalized care.
Baeho Joo, BPhty +2 more
doaj +1 more source
The TanDEM-X Mission Phases—Ten Years of Bistatic Acquisition and Formation Planning [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 TanDEM-X is a formation flying interferometer consisting of two SAR satellites. Together they acquire bistatic SAR data of the earth in order to generate a global digital elevation model as well as individual scientific interferometric datasets on user request. This article gives an overview about ten years of acquisition and formation planning for the
Bachmann, Markus +11 more
openaire +1 more source
TanDEM-X: first scientific experiments during the commissioning phase [PDF]
, 2010 In this paper new and innovative techniques during the commissioning phase of TanDEM-X will be presented that are firstly demonstrated on a satellite platform. The focus is on the secondary goals of TanDEM-X that are assigned for the third year of the mission time life due to the tight schedule for the acquisition of the highly accurate global digital ...
Hajnsek, Irena +5 more
openaire +3 more sources
On the Sensitivity of TanDEM-X-Observations to Boreal Forest Structure
Remote Sensing, 2019 The structure of forests is important to observe for understanding coupling to global dynamics of ecosystems, biodiversity, and management aspects. In this paper, the sensitivity of X-band to boreal forest stem volume and to vertical and horizontal ...
Jan I. H. Askne +2 more
doaj +1 more source