Results 31 to 40 of about 7,723,935 (379)
Non-Taylor series based positioning method for location based services [PDF]
, 2008 Location Based Services (LBS) has gained increasing popularity in major cities. Due to blocking from man-made structures, the existing Global Positioning System (GPS) could not satisfy LBS applications, especially in street canyon and indoor surroundings.
Reza, Ahmed Wasef +2 more
core +2 more sources
Construction and Accuracy Analysis of a BDS/GPS-Integrated Positioning Algorithm for Forests
Croatian Journal of Forest Engineering, 2021 The objective of this study was to construct a BeiDou navigation satellite system (BDS)/ global positioning system (GPS)-integrated positioning algorithm that meets the accuracy requirement of forest surveys and to analyze its accuracy to provide ...
Fei Yan, Xueqi Hu, Lidan Xu, Yongrui Wu
doaj +1 more source
Use of optoelectronic tweezers in manufacturing – accurate solder bead positioning [PDF]
, 2016 In this work, we analyze the use of optoelectronic tweezers (OETs) to manipulate 45 μm diameter Sn62Pb36Ag2 solder beads with light-induced dielectrophoresis force and we demonstrate high positioning accuracy.
Cooper, Jonathan M. +6 more
core +1 more source
Quantum enhanced positioning and clock synchronization [PDF]
, 2001 A wide variety of positioning and ranging procedures are based on repeatedly sending electromagnetic pulses through space and measuring their time of arrival.
A Peres +20 more
core +2 more sources
Positioning accuracy and formation analysis of multi-UAV passive positioning system
, 2021 In recent years, with the rapid development of Unmanned Aerial Vehicle (UAV) technology, the passive positioning technology of UAV has been further developed in military and civil fields.
Jing Zhu +3 more
semanticscholar +1 more source
Remote Sensing, 2022 The high-precision geometric positioning of optical remote sensing satellites is the prerequisite to determine the application capability of satellite image products.
Qingyang Li +5 more
doaj +1 more source
Underwater acoustic slant range measurements related to weather and sea state [PDF]
, 2018 Underwater range measurements are key factor in underwater acoustic positioning, used in Long Base-Line (LBL) or Ultra Short Base-Line (USBL) computing techniques. These measurements are commonly carried out through acoustic communications between modems
Aguzzi, Jacopo +5 more
core +1 more source
Development of Precise Point Positioning Method Using Global Positioning System Measurements [PDF]
Journal of Astronomy and Space Sciences, 2011 Precise point positioning (PPP) is increasingly used in several parts such as monitoring of crustal movement and maintaining an international terrestrial reference frame using global positioning system (GPS) measurements.
Byung-Kyu Choi +4 more
doaj +1 more source
Landmark Attribute Analysis for a High-Precision Landmark-Based Local Positioning System
IEEE Access, 2021 GPS signals are not reliable in urban canyons or inside tunnels. In those situations, accurate local positioning is possible through local landmarks. This paper presents the potential accuracy of such a landmark-based local positioning system and the ...
Juhui Gim, Changsun Ahn, Huie Peng
doaj +1 more source
Implicit Cooperative Positioning in Vehicular Networks [PDF]
, 2017 Absolute positioning of vehicles is based on Global Navigation Satellite Systems (GNSS) combined with on-board sensors and high-resolution maps. In Cooperative Intelligent Transportation Systems (C-ITS), the positioning performance can be augmented by ...
Denis, Benoit +5 more
core +2 more sources