Results 51 to 60 of about 378,510 (233)

Challenges in Open-air Microwave Quantum Communication and Sensing

, 2018
Quantum communication is a holy grail to achieve secure communication among a set of partners, since it is provably unbreakable by physical laws. Quantum sensing employs quantum entanglement as an extra resource to determine parameters by either using ...
Deppe, Frank, Fedorov, Kirill G., Sanz, Mikel, Solano, Enrique   +3 more
core   +1 more source

Microwave imaging techniques for biomedical applications [PDF]

, 1999
Microwaves have been considered for medical applications involving the detection of organ movements and changes in tissue water content. More particularly cardiopulmonary interrogation via microwaves has resulted in various sensors monitoring ventricular
Bolomey, Jean Charles, Broquetas Ibars, Antoni, Geffrin, J M, Joachimowicz, N, Jofre Roca, Lluís, Joisel, A, Mallorquí Franquet, Jordi Joan, Vall-Llossera Ferran, Mercedes Magdalena, Vall·Llossera, M   +8 more
core   +1 more source

Decoherence of a Josephson qubit due to coupling to two level systems

, 2004
Noise and decoherence are major obstacles to the implementation of Josephson junction qubits in quantum computing. Recent experiments suggest that two level systems (TLS) in the oxide tunnel barrier are a source of decoherence. We explore two decoherence
A. B. Zorin, A. J. Leggett, C. C. Yu, Clare C. Yu, D. J. Van Harlingen, F. K. du Pré, J. Bernamont, Li-Chung Ku, S. Machlup, T. Van Duzer, W. A. Phillips, W. H. Press, Y. Yu   +12 more
core   +1 more source

Sub-terahertz, microwaves and high energy emissions during the December 6, 2006 flare, at 18:40 UT

, 2008
The presence of a solar burst spectral component with flux density increasing with frequency in the sub-terahertz range, spectrally separated from the well-known microwave spectral component, bring new possibilities to explore the flaring physical ...
A.T. Altyntsev, A.V.R. Silva, Albert Y. Shih, C. Guillermo Giménez de Castro, C.G. Giménez de Castro, D.L. Croom, D.L. Croom, D.L. Croom, F.I. Shimabukuro, G. Cristiani, G. Trottet, G. Trottet, G.A. Dulk, G.L. Carr, G.M. Nita, G.P. Williams, Gérard Trottet, H.A. Garcia, Hugo Levato, J.C. Brown, J.C. Vial, J.E.R. Costa, J.I. Sakai, J.I. Sakai, J.M. Byrd, J.P. Wild, J.R. Cogdell, J.R. Roy, J.S. Nodvick, Jean-Pierre Raulin, K. Akabane, K. Kai, K. Ohki, K.L. Klein, N. Vilmer, P. Kaufmann, P. Kaufmann, P. Kaufmann, P.A. Sturrock, Pierre Kaufmann, R. Ramaty, R.E. Lingenfelter, S. Szpiegel, S.K. Antiochos, Säm Krucker, T.S. Bastian, U. Feldman   +46 more
core   +2 more sources

Bidirectional interconversion of microwave and light with thin-film lithium niobate [PDF]

, 2021
Yuntao Xu, Ayed Al Sayem, Linran Fan, Chang‐Ling Zou, Sihao Wang, Risheng Cheng, Wei Fu, Likai Yang, Mingrui Xu, Hong X. Tang   +9 more
openalex   +1 more source

Efficient RCS Computation Over a Broad Frequency Band Using Subdomain MoM and Chebyshev Approximation Technique

IEEE Access, 2020
The analysis of the target's broadband electromagnetic scattering characteristics plays an important role in radar stealth and recognition areas. The traditional method of moments (MoM) needs to calculate the currents at each frequency point when ...
Xing Wang, Haoxuan Gong, Shuai Zhang, Ying Liu, Ruipeng Yang, Chunheng Liu   +5 more
doaj   +1 more source

The local dust foregrounds in the microwave sky: I. Thermal emission spectra

, 2009
Analyses of the cosmic microwave background (CMB) radiation maps made by the Wilkinson Microwave Anisotropy Probe (WMAP) have revealed anomalies not predicted by the standard inflationary cosmology.
Dikarev, V., Krivov, A., Krueger, H., Preuss, O., Solanki, S.   +4 more
core   +1 more source

High‐resolution inverse synthetic aperture radar imaging of satellites in space

IET Radar, Sonar & Navigation
In view of the increasing number of space objects, comprehensive high‐quality space surveillance becomes ever more important. Radar is a powerful tool that, in addition to detection and tracking of objects, also enables spatially high‐resolution imaging ...
Simon Anger, Matthias Jirousek, Stephan Dill, Timo Kempf, Markus Peichl   +4 more
doaj   +1 more source

Independent System Calibration of Sentinel-1B

Remote Sensing, 2017
Sentinel-1B is the second of two C-Band Synthetic Aperture Radar (SAR) satellites of the Sentinel-1 mission, launched in April 2016—two years after the launch of the first satellite, Sentinel-1A.
Marco Schwerdt, Kersten Schmidt, Núria Tous Ramon, Patrick Klenk, Nestor Yague-Martinez, Pau Prats-Iraola, Manfred Zink, Dirk Geudtner   +7 more
doaj   +1 more source

A Low-Power, Ambiguous Synthetic Aperture Radar Concept for Continuous Ship Monitoring

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This article addresses the design of a low-cost synthetic aperture radar (SAR) for a single dedicated application, namely illegal vessel detection, which can be implemented using a small satellite and is characterized by reduced transmit power and high ...
Nertjana Ustalli, Gerhard Krieger, Michelangelo Villano   +2 more
doaj   +1 more source