Results 21 to 30 of about 7,723,935 (379)

Study on the Positioning Accuracy of GNSS/INS Systems Supported by DGPS and RTK Receivers for Hydrographic Surveys

Energies, 2021
Hydrographic surveys, in accordance with the International Hydrographic Organization (IHO) S-44 standard, can be carried out in the following five orders: Exclusive, Special, 1a, 1b and 2, for which minimum accuracy requirements for the applied ...
A. Stateczny, C. Specht, Mariusz Specht, David Brčić, Alen Jugović, Szymon Widzgowski, M. Wiśniewska, Oktawia Lewicka   +7 more
semanticscholar   +1 more source

An improved received signal strength indicator positioning algorithm based on weighted centroid and adaptive threshold selection

Alexandria Engineering Journal, 2021
Positioning is a widely used technology in wireless sensor network (WSN). For range-based positioning, the positioning accuracy is proportional to positioning accuracy. As a low-cost positioning method, the range-based received signal strength indicator (
Junchao Tang, Jianhui Han
doaj   +1 more source

Experimental Research of Triple Inertial Navigation System Shearer Positioning

Micromachines, 2023
In order to improve the positioning accuracy of shearers, the overground experimental device based on the positioning model of TINS (Triple Inertial Navigation System) was built.
Cheng Lu, Shibo Wang, Kyoosik Shin, Wenbin Dong, Wenqi Li   +4 more
doaj   +1 more source

RePos : relative position estimation of UHF-RFID tags for item-level localization [PDF]

, 2019
Radio frequency identification (RFID) technology brings tremendous applications in location-based services. Specifically, ultra-high frequency (UHF) RFID tag positioning based on phase (difference) of arrival (PoA/PDoA) has won great attention, due to ...
De Poorter, Eli, Hoebeke, Jeroen, Joseph, Wout, Li, Chenglong, Plets, David, Suanet, Pieter, Tanghe, Emmeric   +6 more
core   +2 more sources

SaferCross: Enhancing Pedestrian Safety Using Embedded Sensors of Smartphone [PDF]

, 2020
The number of pedestrian accidents continues to keep climbing. Distraction from smartphone is one of the biggest causes for pedestrian fatalities. In this paper, we develop SaferCross, a mobile system based on the embedded sensors of smartphone to ...
Eun, Yongsoon, Park, Kyung-Joon, Shrestha, Aawesh, Won, Myounggyu   +3 more
core   +2 more sources

An SVM Based Weight Scheme for Improving Kinematic GNSS Positioning Accuracy with Low-Cost GNSS Receiver in Urban Environments. [PDF]

Sensors (Basel), 2020
High-precision positioning with low-cost global navigation satellite systems (GNSS) in urban environments remains a significant challenge due to the significant multipath effects, non-line-of-sight (NLOS) errors, as well as poor satellite visibility and ...
Lyu Z, Gao Y.
europepmc   +2 more sources

Evaluating indoor positioning systems in a shopping mall : the lessons learned from the IPIN 2018 competition [PDF]

, 2019
The Indoor Positioning and Indoor Navigation (IPIN) conference holds an annual competition in which indoor localization systems from different research groups worldwide are evaluated empirically.
Ali, Muhammad Usman, Ben-Moshe, Boaz, Chien, Ying-Ren, Cho, Eunyoung, Ding, Zhenxing, Fang, Shih-Hau, Hacohen, Shlomi, Han, Jaeseung, Hur, Soojung, Jeong, Hyeongyo, Jun, Sungwoo, Knauth, Stefan, Kronenwett, Nikolai, Kuang, Jian, Landa, Vlad, Landau, Yael, Lee, Changeun, Lee, Keumryeol, Lee, Soyeon, Lee, Yonghyun, Li, Xianghong, Li, Yu, Lu, Chuanhua, Lungenstrass, Tomas, Marbel, Revital, Martin Mendoza-Silva, German, Niu, Xiaoji, Opiela, Miroslav, Ortiz, Miguel, Pablo Morales, Juan, Park, Chan Gook, Park, Changjun, Park, Sangjoon, Park, So Young, Park, Yongwan, Perez-Navarro, Antoni, Perul, Johan, Pipelidis, Georgios, Plets, David, Ramon Jimenez, Antonio, Renaudin, Valerie, Rew, Jehyeok, Seco, Fernando, Shimada, Atsushi, Shvalb, Nir, Taniguchi, Rin-Ichiro, Thomas, Diego, Torres-Sospedra, Joaquin, Trogh, Jens, Tsao, Yu, Tsiamitros, Nikolaos, Uchiyama, Hideaki, Vladimirov, Blagovest, Wei, Dongyan, Xu, Feng, Yang, Shi-Shen, Ye, Feng, Ye, Shih-Jyun, Zhang, Wenchao, Zhang, Ying, Zheng, Xingyu   +60 more
core   +2 more sources

High precision hybrid RF and ultrasonic chirp-based ranging for low-power IoT nodes [PDF]

, 2020
Hybrid acoustic-RF systems offer excellent ranging accuracy, yet they typically come at a power consumption that is too high to meet the energy constraints of mobile IoT nodes.
Cox, B, De Strycker, L, Ottoy, G, Van der Perre, L, Wielandt, S   +4 more
core   +2 more sources

Performance Analysis of Relative Positioning using GPS and BDS signals [PDF]

E3S Web of Conferences, 2019
In general, the satellite signal received by GNSS receivers has errors such as satellite clock error, orbit error, ionospheric delay and tropospheric delay.
Noh Jae Hee, Lee Sun Yong, Lim Deok Won, Jo Gwang Hee, Lee Jin Hyuk, Lee Sang Jeong   +5 more
doaj   +1 more source

Geometric quality assessment of CBERS-4 MUXCAM image

Revista Brasileira de Geomática, 2016
In December 2014, Brazil and China successfully launched the CBERS-4 satellite, the fourth generation of CBERS satellites. In the payload module, the satellite carries the MUXCAM, a 20 m/pixel spatial resolution multispectral camera. The MUXCAM was built
Thiago Statella
doaj   +1 more source