Zobrazeno 1 - 10
of 323
pro vyhledávání: '"Powell, Keith"'
Autor:
Baranec, Christoph, Ou, James, Riddle, Reed, Zhang, Ruihan, Mckay, Luke, Rampy, Rachel, Bonnet, Morgan, Hamilton, Iven, Ching, Greg, Young, Jessica, Salama, Maıssa, Barnes, Paul, Jacobson, Shane, Onaka, Peter, Chun, Mark, Werber, Zachary, Powell, Keith, van Dam, Marcos A., Shappee, Benjamin
We installed the next-generation automated laser adaptive optics system, Robo-AO-2, on the University of Hawaii 2.2-m telescope on Maunakea in 2023. We engineered Robo-AO-2 to deliver robotic, diffraction-limited observations at visible and near-infr
Externí odkaz:
http://arxiv.org/abs/2407.00582
Autor:
Franken, Cornelis A. A., Cheng, Rebecca, Powell, Keith, Kyriazidis, Georgios, Rosborough, Victoria, Musolf, Juergen, Shah, Maximilian, Barton III, David R., Hills, Gage, Johansson, Leif, Boller, Klaus-J., Lončar, Marko
Thin-film lithium niobate (TFLN) has emerged as a promising platform for the realization of high performance chip-scale optical systems, spanning a range of applications from optical communications to microwave photonics. Such applications rely on th
Externí odkaz:
http://arxiv.org/abs/2407.00269
Autor:
Powell, Keith, Li, Xudong, Assumpcao, Daniel, Magalhães, Letícia, Sinclair, Neil, Lončar, Marko
We demonstrate electro-optic modulators realized in low-loss thin-film lithium tantalate with superior DC-stability (<1 dB power fluctuation from quadrature with 12.1 dBm input) compared to equivalent thin-film lithium niobate modulators (5 dB fluctu
Externí odkaz:
http://arxiv.org/abs/2405.05169
Mobility management is the key feature of cellular networks. When integrating unmanned aerial vehicles (UAVs) into cellular networks, their cell association needs to be carefully managed for coexistence with other cellular users. UAVs move in three d
Externí odkaz:
http://arxiv.org/abs/2201.00779
Cellular network-connected unmanned aerial vehicles (UAVs) experience different radio propagation conditions than radio nodes on the ground. Therefore, it has become critical to investigate the performance of aerial radios, both theoretically and thr
Externí odkaz:
http://arxiv.org/abs/2112.09067
Artificial intelligence (AI) will play an increasing role in cellular network deployment, configuration and management. This paper examines the security implications of AI-driven 6G radio access networks (RANs). While the expected timeline for 6G sta
Externí odkaz:
http://arxiv.org/abs/2106.02494
Unmanned aerial vehicles (UAVs) are emerging as enablers for supporting many applications and services, such as precision agriculture, search and rescue, temporary network deployment or coverage extension, and security. UAVs are being considered for
Externí odkaz:
http://arxiv.org/abs/2007.00244
Autor:
Powell, Keith, Sabri, Aly, Brennan, Daniel, Marojevic, Vuk, Barts, R. Michael, Panicker, Ashwin, Ozdemir, Ozgur, Guvenc, Ismail
As new use cases are emerging for unmanned aerial systems (UAS), advanced wireless communications technologies and systems need to be implemented and widely tested. This requires a flexible platform for development, deployment, testing and demonstrat
Externí odkaz:
http://arxiv.org/abs/2004.01987
Autor:
Powell, Keith
Wavefront controller optimization is important in achieving the best possible image quality for adaptive optics systems on the current generation of large and very large aperture telescopes. This will become even more critical when we consider the de
Externí odkaz:
http://hdl.handle.net/10150/222838
Autor:
Jackson, Kathryn J., Schmidt, Dirk, Vernet, Elise, Baranec, Christoph, Ou, James, Riddle, Reed, Zhang, Ruihan, Mckay, Luke, Rampy, Rachel, Bonnet, Morgan, Hamilton, Iven, Ching, Greg, Young, Jessica, Salama, Maïssa, Barnes, Paul, Jacobson, Shane, Onaka, Peter, Chun, Mark, Werber, Zachary, Powell, Keith, van Dam, Marcos A., Shappee, Benjamin
Publikováno v:
Proceedings of SPIE; August 2024, Vol. 13097 Issue: 1 p130970G-130970G-17, 12966048p