Results 31 to 40 of about 792,879 (315)
Improved Strong Tracking Cubature Kalman Filter for UWB Positioning
, 2023 For the problems of Non-Line-of-Sight (NLOS) observation errors and inaccurate predictive dynamics model in wireless ultra-wideband (UWB) positioning systems, an improved strong tracking cubature Kalman filter (ISTCKF) positioning algorithm is proposed ...
Yanbo Wang +6 more
core +1 more source
Indoor Positioning System with UWB Based on a Digital Twin
, 2022 Ultra-wideband (UWB) technology is used for indoor positioning, but its positioning accuracy is usually degenerated by various obstacles in the indoor environment because of non-line-of-sight (NLOS).
Zhao, Qi +9 more
core +1 more source
L'evoluzione delle Stazioni Totali: quarant'anni di innovazione Topcon
GEOmedia, 2018 A 40-year history, from the introduction of the first total station model, so named because it introduced an absolute innovation compared to the combination theodolite-EDM, up to the last generations of robotic instrumentation for which the involvement ...
Massimiliano Toppi, Sauro Passarelli
doaj +3 more sources
Optimisation of Lilla Edet Landslide GPS Monitoring Network
Journal of Geodetic Science, 2015 Since the year 2000, some periodic investigations have been performed in the Lilla Edet region to monitor and possibly determine the landslide of the area with GPS measurements.
Alizadeh-Khameneh M. A. +2 more
doaj +1 more source
Indoor Localization With Robust Global Channel Charting: A Time-Distance-Based Approach
IEEE Transactions on Machine Learning in Communications and Networking, 2023 Fingerprinting (FP) significantly improves the indoor localization performance in non-line-of-sight-dominated areas. However, its deployment and maintenance is cost-intensive as it needs ground-truth reference systems for both the initial training and ...
Maximilian Stahlke +4 more
doaj +1 more source
Models for Positional Information and Positional Differentiation [PDF]
Proceedings of the National Academy of Sciences, 1974 It is commonly thought that the formation of patterns in developing organisms is due to the existence of a gradient of a morphogen that determines the fate of cells as a function of position in the organism. A model is presented based on a molecular mechanism where the gradient is established by the active transport of a morphogen between source and ...
Babloyantz, Agnessa +1 more
openaire +3 more sources
Cramér-Rao Bound for Hybrid GNSS-Terrestrial Cooperative Positioning [PDF]
, 2010 In this contribution we derive an expression of the Cramer-Rao bound for hybrid cooperative positioning, where GNSS information is combined with terrestrial range measurements through exchange of peer-to-peer messages. These results provide a theoretical
Penna, Federico, +11 more
core +1 more source
Positioning in Chinese digital television network using TDS-OFDM signals
, 2011 Due to wide coverage and high transmission power of digital television (DTV) transmitters, DTV-based wireless positioning is a promising complementary to global positioning system.
Dai, Linglong +7 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source
IEEE Access, 2020 Achieving accurate and reliable positioning in dynamic urban scenarios using low-cost vehicular onboard sensors, such as the global navigation satellite systems (GNSS), camera, and inertial measurement unit (IMU), is still a challenging problem.
Weisong Wen +5 more
doaj +1 more source