Results 51 to 60 of about 7,723,935 (379)

Deterministic nano-assembly of a coupled quantum emitter - photonic crystal cavity system [PDF]

, 2011
The interaction of a single quantum emitter with its environment is a central theme in quantum optics. When placed in highly confined optical fields, such as those created in optical cavities or plasmonic structures, the optical properties of the emitter
Bouwmeester, D., Hagemeier, J., Hanson, R., Heeres, E. C., Kim, H., Oosterkamp, T. H., Petroff, P. M., Pfaff, W., Thon, S. M., van der Sar, T.   +9 more
core   +4 more sources

CADASTRAL DATABASE POSITIONAL ACCURACY IMPROVEMENT [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Abstract. Positional Accuracy Improvement (PAI) is the refining process of the geometry feature in a geospatial dataset to improve its actual position. This actual position relates to the absolute position in specific coordinate system and the relation to the neighborhood features.
N. M. Hashim, A. H. Omar, S. N. M. Ramli, K. M. Omar, N. Din   +4 more
openaire   +3 more sources

Improvement of Heavy Load Robot Positioning Accuracy by Combining a Model-Based Identification for Geometric Parameters and an Optimized Neural Network for the Compensation of Nongeometric Errors

Complex, 2020
The positioning accuracy of a robot is of great significance in advanced robotic manufacturing systems. This paper proposes a novel calibration method for improving robot positioning accuracy.
Yuxiang Wang, Zhang-wei Chen, Hongfei Zu, Xiang Zhang, Chentao Mao, Zhirong Wang   +5 more
semanticscholar   +1 more source

Three-dimensional Space Positioning Algorithm Based on Planar Projection [PDF]

Jisuanji gongcheng, 2016
In the process of Wireless Sensor Network(WSN) node positioning,it is more important to improve the x-axis and y-axis positioning accuracy of an unknown node than z-axis positioning accuracy,so this paper proposes a positioning algorithm based on planar ...
FENG Xiaojie,PENG Yong,WU Xisheng
doaj   +1 more source

Trajectory Planning Algorithm of UAV Based on System Positioning Accuracy Constraints

Electronics, 2020
This paper describes a novel trajectory planning algorithm for an unmanned aerial vehicle (UAV) under the constraints of system positioning accuracy. Due to the limitation of the system structure, a UAV cannot accurately locate itself.
Hao Zhou, Hailing Xiong, Yun Liu, Nongdie Tan, Lei Chen   +4 more
semanticscholar   +1 more source

Ultrasonic Array-Based Multi-Source Fusion Indoor Positioning Technology

Sensors
Underground mining involves numerous risks, such as collapses, gas leaks, and explosions, posing significant threats to worker safety. In this work, we develop an indoor localization system that uses Bluetooth for coarse positioning and ultrasonic arrays
Cong Li, Chenning Zhang, Bing Chen, Shaojian Xu, Luping Xu, Bo Yan   +5 more
doaj   +1 more source

The Positioning Technology for Underwater Wireless Optical Communication Systems

Guangtongxin yanjiu, 2023
In recent years, with the continuous promotion of the " Ocean Power" strategy, Underwater Wireless Optical Communication (UWOC) has played an important role in marine military, underwater environment monitoring, submarine oil exploration and marine ...
ZHANG Teng-xiao, QIU Yang
doaj  

Vulnerability analysis of satellite-based synchronized smart grids monitoring systems [PDF]

, 2014
The large-scale deployment of wide-area monitoring systems could play a strategic role in supporting the evolution of traditional power systems toward smarter and self-healing grids. The correct operation of these synchronized monitoring systems requires
Ahmed faheem Zobaa, Alfredo Vaccaro, Behrendt K., Celano T., Dickerson B., Dion A., Giuseppina Formato, Hu Y., Iacoviello A., Larsson M., Lombardi M. A., Mack P., Madani V., Madani V., Orpen O., Phadke A. G., Schenato L., Terzija V., Ullo S., Yang Y.   +19 more
core   +1 more source

Improvement of the Positioning Accuracy of a Single Frequency Receiver using Observables of the Dual GPS Reference Stations [PDF]

Journal of Astronomy and Space Sciences, 2008
With the growth of civil and commercial applications, the Global Navigation Satellite System(GNSS) that provides the positioning, navigation, and timing information affects to our life.
Byung-Kyu Choi, Jong-Uk Park, Sang-Jeong Lee   +2 more
doaj   +1 more source

Positioning Accuracy Improvement via Distributed Location Estimate in Cooperative Vehicular Networks

, 2012
The development of cooperative vehicle safety (CVS) applications, such as collision warnings, turning assistants, and speed advisories, etc., has received great attention in the past few years. Accurate vehicular localization is essential to enable these
Lim, Hock Beng, Liu, Kai
core   +2 more sources