HDOP and VDOP Analysis in an Ideal Placement Environment for Dual GNSSs [PDF]
Sensors, 2022 Increasing the number of satellites in a global navigation satellite system (GNSS) improves the positioning accuracy and increases availability. However, it reduces the positioning accuracy improvement rate and increases the calculation loads, which can ...
Jinhyeok Jang +2 more
exaly +6 more sources
A Geometric Layout Method for Synchronous Pseudolite Positioning Systems Based on a New Weighted HDOP [PDF]
ISPRS International Journal of Geo-Information, 2021 The positioning accuracy of a ground-based system in an indoor environment is closely related to the geometric configuration of pseudolites. This paper presents a simple closed-form equation for computing the weighted horizontal dilution of precision ...
Xinyang Zhao +2 more
exaly +4 more sources
Measurement Along the Path of Unmanned Aerial Vehicles for Best Horizontal Dilution of Precision and Geometric Dilution of Precision [PDF]
SensorsIn the zenith-horizon placement for achieving minimum geometric dilution of precision (GDOP), one access node or sensor is positioned along the z-axis, while the remaining nodes are placed symmetrically on a three-dimensional (3D) cone.
Genshe Chen, Chen Genshe
exaly +4 more sources
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 +2 more sources
LoRa Network Planning and Deployment: A Terrestrial Navigation Application
IEEE Access, 2021 Long Range (LoRa) is a popular low power wide area network (LPWAN) technology which operates in the Industrial, Scientific and Medical (ISM) frequency band transmitting information over ranges in excess of 20 km and 5 km in rural and urban landscapes ...
Lone Kolobe +2 more
exaly +3 more sources
Research on Indoor Multi-Scene Base Station Deployment Method Based on HDOP
Electronics (Switzerland)In indoor positioning scenarios, the deployment of base stations plays a crucial role in the accuracy of positioning information. In recent years, how to reasonably deploy base stations to reduce HDOP (horizontal dilution of precision) has become a hot topic in the field of indoor positioning research. Currently, most research focuses only on HDOP in a
Shuaichen Li, Jianfeng Wu, Xiaoyan Liu
exaly +2 more sources
UWB Base Station Deployment Optimization Method Considering NLOS Effects Based on Levy Flight-Improved Particle Swarm Optimizer [PDF]
SensorsThe ultra-wideband (UWB) base station (BS) deployment pattern seriously affects mobile tag positioning accuracy, but the traditional classical deployment methods, such as rectangular and diamond deployment, cannot take into account the influence of non ...
Shengliang Wang +4 more
doaj +2 more sources
Experimental studies on the relationship between HDOP and position error in the GPS system [PDF]
Metrology and Measurement Systems, 2022 2D position error in the Global Positioning System (GPS) depends on the Horizontal Dilution of Precision (HDOP) and User Equivalent Range Error UERE.
Mariusz Specht
doaj +1 more source
A New Ground-Based Pseudolite System Deployment Algorithm Based on MOPSO
Sensors, 2021 Pseudolite deployment is the premise of ground-based pseudolite system networking, which affects the coverage and positioning accuracy of ground-based pseudolite systems.
Wenjie Tang +4 more
doaj +1 more source
Engineering Proceedings, 2023 This paper addresses cooperative navigation using range radios to enable absolute positioning of low-flying UAS (LF) while operating in GNSS-denied environments.
Mats Martens, Maarten Uijt de Haag
doaj +1 more source