Results 61 to 70 of about 436,322 (188)

Silicon-based spin and charge quantum computation [PDF]

, 2005
Silicon-based quantum-computer architectures have attracted attention because of their promise for scalability and their potential for synergetically utilizing the available resources associated with the existing Si technology infrastructure.
Adriano S. Martins, ANDRES K, BARENCO A, BARRETT SD, Belita Koiller, BENNETT CH, BUEHLER TM, COLE BE, DAS SARMA S, DAS SARMA S, DIVINCENZO DP, EKERT AK, FEDICHKIN L, GRABERT H, HAYASHI T, HOLLENBERG LCL, HOLLENBERG LCL, HU X, HU X, HU X, HU X, IMAMOGLU A, KANE BE, KLIMECK G, KOHN W, KOILLER B, KOILLER B, KOILLER B, KOILLER B, KOILLER B, LOSS D, MARTINS AS, MARTINS AS, NIELSEN MA, O'BRIEN JL, PRIVMAN V, Rodrigo B. Capaz, Sankar Das Sarma, SCHENKEL T, SCHOFIELD SR, SHOR PW, SHOR PW, SKINNER AJ, SLATER JC, STEANE A, STEANE AM, TANAMOTO T, TANAMOTO T, VANDERSYPEN LMK, VOYLES PM, VRIJEN R, WELLARD CJ, Xuedong Hu, ZUTIC I   +53 more
core   +3 more sources

Galileo Time Transfer with Five-Frequency Uncombined PPP: A Posteriori Weighting, Inter-Frequency Bias, Precise Products and Multi-Frequency Contribution

Remote Sensing, 2022
Galileo satellites can broadcast signals on five frequencies, namely E1, E5A, E5B, E5 (A+B), and E6. The multi-frequency integration has become an emerging trend in Global Navigation Satellite System (GNSS) data processing.
Zhehao Zhang, Lin Pan
doaj   +1 more source

Network based real-time precise point positioning [PDF]

Advances in Space Research, 2010
Network based real-time precise point positioning system includes two stages, i.e. real-time estimation of satellite clocks based on a reference network and real-time precise point positioning thereafter. In this paper, a satellite- and epoch-differenced approach, adopted from what is introduced by Han et al.
Li, H., Chen, J., Wang, J., Hu, C., Liu, Z.   +4 more
openaire   +4 more sources

Improving Geoidal Height Estimates from Global Geopotential Model Using Regression Model and GPS Data [PDF]

, 1997
Conventionally, for most application, position of a point is often referred to the geoid as the reference surface. Thus there is an important need for the knowledge of the geoid undulation in the area where positioning tasks is performed, This ...
Abdullah, Khairul Anuar
core  

On-Chip Cavity Optomechanical Coupling [PDF]

, 2014
On-chip cavity optomechanics, in which strong co-localization of light and mechanical motion is engineered, relies on efficient coupling of light both into and out of the on-chip optical resonator.
Davis, John P, Doolin, Callum, Hauer, Bradley D, Kim, Paul H, MacDonald, Allison JR, Ramp, Hugh   +5 more
core   +2 more sources

Analysis of Regional Satellite Clock Bias Characteristics Based on BeiDou System

Remote Sensing, 2022
With the continuous development of the Global Navigation Satellite System (GNSS), the calculation theory and strategy of the global Satellite Clock Bias (SCB) tends to be mature.
Wenxuan Liu, Hu Wang, Hongyang Ma, Yingyan Cheng, Pengyuan Li, Bo Li, Yingying Ren   +6 more
doaj   +1 more source

Proposed satellite position determination systems and techniques for Geostationary Synthetic Aperture Radar [PDF]

, 2016
This paper proposes two different calibration techniques for Geostationary Synthetic Aperture Radar (GEOSAR) missions requiring a high precision positioning, based on Active Radar Calibrators and Ground Based Interferometry.
Broquetas Ibars, Antoni, Casado Blanco, David, Fernández Usón, Marc, Martin Fuster, Roger   +3 more
core   +2 more sources

Long-Term Performance Evaluation of BeiDou PPP-B2b Products and Its Application in Time Service

Remote Sensing, 2023
Precise Point Positioning (PPP) is an official service of the BeiDou Global Navigation Satellite System (BDS-3) through the PPP-B2b signal. In this paper, we mainly focus on the long-term performance evaluation of BDS-3 PPP-B2b products and their ...
Qianqian He, Liang Chen, Lei Liu, Daiyan Zhao, Xiaopeng Gong, Yidong Lou, Qi Guan   +6 more
doaj   +1 more source

Real-Time Precise Point Positioning Using Tomographic Wet Refractivity Fields

Remote Sensing, 2018
The tropospheric wet delay induced by water vapor is a major error source in precise point positioning (PPP), significantly influencing the convergence time to obtain high-accuracy positioning.
Wenkun Yu, Biyan Chen, Wujiao Dai, Xiaomin Luo   +3 more
doaj   +1 more source

A Novel Real-time Precise Positioning Service System: Global Precise Point Positioning With Regional Augmentation

Journal of Global Positioning Systems, 2012
Based on precise real time orbit and clock products from a global network, the standard Precise Point Positioning (PPP) computes user states, which requires a long initialization time in order to obtain a converged solution. Conversely, the Network Real-Time Kinematic (NRTK) positioning requires additional corrections from regional or local dense ...
Ge, M., Douša, J., Li, X., Ramatschi, M., Nischan, T., Wickert, J.   +5 more
openaire   +4 more sources