Results 31 to 40 of about 45,129 (306)

Testing the Positioning Accuracy of GNSS Solutions during the Tramway Track Mobile Satellite Measurements in Diverse Urban Signal Reception Conditions

Energies, 2020
Mobile Global Navigation Satellite System (GNSS) measurements carried out on the railway consist of using satellite navigation systems to determine the track geometry of a moving railway vehicle on a given route.
Mariusz Specht, Cezary Specht, Andrzej Wilk, Władysław Koc, Leszek Smolarek, Krzysztof Czaplewski, Krzysztof Karwowski, Paweł S. Dąbrowski, Jacek Skibicki, Piotr Chrostowski, Jacek Szmagliński, Sławomir Grulkowski, Sławomir Judek   +12 more
doaj   +1 more source

A particle filtering approach for joint detection/estimation of multipath effects on GPS measurements [PDF]

, 2007
Multipath propagation causes major impairments to Global Positioning System (GPS) based navigation. Multipath results in biased GPS measurements, hence inaccurate position estimates.
Giremus, Audrey, Tourneret, Jean-Yves, Calmettes, Vincent   +2 more
core   +1 more source

The Impact of Estimating High-Resolution Tropospheric Gradients on Multi-GNSS Precise Positioning

Sensors, 2017
Benefits from the modernized US Global Positioning System (GPS), the revitalized Russian GLObal NAvigation Satellite System (GLONASS), and the newly-developed Chinese BeiDou Navigation Satellite System (BDS) and European Galileo, multi-constellation ...
Feng Zhou, Xingxing Li, Weiwei Li, Wen Chen, Danan Dong, Jens Wickert, Harald Schuh   +6 more
doaj   +1 more source

Evaluation of Point Positioning Using the Global Positioning System and the Quasi-Zenith Satellite System as Measured from South Korea [PDF]

Journal of Astronomy and Space Sciences, 2015
The Quasi-Zenith Satellite System (QZSS), a dedicated regional Japanese satellite system currently under development, was designed to complement the performance of the Global Positioning System (GPS).
Byung-Kyu Choi, Chang-Hyun Cho, Jung Ho Cho   +2 more
doaj   +1 more source

BDS/GPS/UWB Adaptively Robust EKF Tightly Coupled Navigation Model Considering Pedestrian Motion Characteristics

Remote Sensing, 2022
In the indoor and outdoor transition area, due to its poor availability in a complex positioning environment, the BDS/GPS SPP (single-point positioning by combining BeiDou Navigation Satellite System (BDS) and Global Positioning System (GPS)) is unable ...
Jian Zhang, Jian Wang, Ximin Cui, Debao Yuan   +3 more
doaj   +1 more source

Deflection and frequency monitoring of the Forth Road Bridge, Scotland, by GPS [PDF]

, 2012
Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. Copyright © 2012 Thomas Telford Ltd.The use of carrier phase kinematic GPS (global positioning system) has evolved ...
Brown, CJ, Roberts, GW, Brown, Christopher J., Atkins, Christopher, Meng, X, Roberts, Gethin W., Meng, Xiaolin, Atkins, C, Colford, Barry, Ogundipe, O, Ogundipe, Oluropo, Colford, B   +11 more
core   +1 more source

Maritime DGPS System Positioning Accuracy as a Function of the HDOP in the Context of Hydrographic Survey Performance

Remote Sensing, 2022
The Differential Global Positioning System (DGPS) is a marine navigation system operating at frequencies of 283.5–325 kHz, which is now the primary method for locating vessels in coastal shipping, as well as hydrography and mapping systems worldwide. Its
Cezary Specht
doaj   +1 more source

GPS + BDS Network Real-Time Differential Positioning Using a Position Domain Estimation Method

Remote Sensing, 2019
The network real-time differential positioning technique is a good choice for meter and sub-meter level’s navigation. More attention has been paid to the Global Positioning System (GPS) and GPS + GLONASS (GLObal NAvigation Satellite System) network
Jianhui Cui, Rui Yan, Chenlong Deng, Weiming Tang, Xuan Zou, Mingxing Shen, Qian Liu, Yawei Wang, Yangyang Li   +8 more
doaj   +1 more source

The evaluation of the positioning accuracy of the EGNOS and DGPS systems based on the long-term measurements in the years 2006–2014

Polish Cartographical Review, 2015
The DGPS (Differential GPS) and EGNOS (European Geostationary Navigation Overlay Service) systems belong to a group of systems supporting the global satellite system GPS (Global Positioning System).
Specht Mariusz
doaj   +1 more source

A New Indoor Positioning System Architecture Using GPS Signals

Sensors, 2015
The pseudolite system is a good alternative for indoor positioning systems due to its large coverage area and accurate positioning solution. However, for common Global Positioning System (GPS) receivers, the pseudolite system requires some modifications ...
Rui Xu, Wu Chen, Ying Xu, Shengyue Ji
doaj   +1 more source