Results 31 to 40 of about 647,850 (296)

A BDS/LTE-R Enhanced Data Fusion Positioning Algorithm Based on Deep Learning

Journal of Applied Science and Engineering, 2022
Integrated positioning methods in the high-velocity train control system require auxiliary equipment leading to more construction and maintenance costs.
Miao Luo, Jianwu Dang, Zhanjun Hao, Zhenhai Zhang   +3 more
doaj   +1 more source

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

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  

Nanopositioning of a diamond nanocrystal containing a single NV defect center

, 2009
Precise control over the position of a single quantum object is important for many experiments in quantum science and nanotechnology. We report on a technique for high-accuracy positioning of individual diamond nanocrystals.
de Lange, G., Dmochowski, G. M., Hanson, R., Heeres, E. C., Oosterkamp, T. H., Robledo, L., van der Sar, T.   +6 more
core   +2 more sources

Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]

, 2019
©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong, Gerland, Sebastian, Ramatschi, Markus, Schuh, Harald, Semmling, Maximilian, Wang, Jungang, Wickert, Jens, Wu, Zhilu, Zus, Florian   +8 more
core   +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

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

Field testing a novel high residence positioning system for monitoring the fine‐scale movements of aquatic organisms [PDF]

, 2018
1. Acoustic telemetry is an important tool for studying the behaviour of aquatic organisms in the wild. 2. VEMCO high residence (HR) tags and receivers are a recent introduction in the field of acoustic telemetry and can be paired with existing ...
Bailey, David M., Guzzo, Matthew M., Hollins, Jack, Killen, Shaun S., Koeck, Barbara, Newton, Matthew, Smith, Frank I., Van Leeuwen, Travis E., Webber, Dale M.   +8 more
core   +1 more source

A Feasibility Study of RIP Using 2.4 GHz 802.15.4 Radios [PDF]

, 2010
This paper contains a feasibility study of Radio Interferometric Positioning (RIP) implemented on a widely used 2.4 GHz radio (CC2430). RIP is a relatively new localization technique that uses signal strength measurements.
Dil, B.J., Havinga, P.J.M.
core   +4 more sources

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter, Jens‐Peter Schenk, Jenny Wegert, Manfred Gessler, Leo Kager, Stefan Wagenpfeil, Marina Müller, Jean‐Michel Wolff, Joerg Fuchs, Steven W. Warmann, Clemens‐Magnus Meier, Jochen Hubertus, Christian Rübe, Christian Vokuhl, Patrick Melchior, Lena Tschirner, Norbert Graf, Rhoikos Furtwängler   +17 more
wiley   +1 more source