Results 11 to 20 of about 418 (139)
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
Autonomous “Figure-8” Flights of a Quadcopter: Experimental Datasets
This article describes the data acquired from multiple flights of a custom-built quadcopter. The Quadcopter was programmed to fly a pre-defined “Figure-8” flight path, at a constant altitude.
Srikanth Gururajan, Ye Bai
doaj +2 more sources
Performance analysis and improvement of the ultra-wide band localization system
With the very wide spectrum and high resolution characteristics, ultra-wideband (UWB) communication technique is chosen various indoor localization.
Kerem Küçük
doaj +2 more sources
Biotelemetry marches on: A cost-effective GPS device for monitoring terrestrial wildlife. [PDF]
The availability of low-cost wildlife trackers increases the capacity to collect valuable ecological data when research budgets are limited. We converted a commercially available global positioning system (GPS) product into a low-cost tracking device ...
Manuela Fischer +6 more
doaj +3 more sources
Quantification Method for the Uncertainty of Matching Point Distribution on 3D Reconstruction
Matching points are the direct data sources of the fundamental matrix, camera parameters, and point cloud calculation. Thus, their uncertainty has a direct influence on the quality of image-based 3D reconstruction and is dependent on the number, accuracy,
Yuxia Bian +5 more
doaj +2 more sources
Automated valet parking (AVP) has attracted much attention as the entry point to autonomous driving. In an indoor environment, high-precision positioning systems are essential for AVP.
Shengchuan Jiang +4 more
doaj +2 more sources
An evaluation of the accuracy and performance of lightweight GPS collars in a suburban environment. [PDF]
The recent development of lightweight GPS collars has enabled medium-to-small sized animals to be tracked via GPS telemetry. Evaluation of the performance and accuracy of GPS collars is largely confined to devices designed for large animals for ...
Amy L Adams +3 more
doaj +2 more sources
Deployment Strategy Analysis for Underwater Geodetic Networks
Seafloor geodetic network (SGN) is the foundation for building an underwater positioning, navigation and timing (PNT) system. Traditional network deployment mainly focuses on the deployment of underwater sensor network nodes.
Wei Huang +3 more
doaj +2 more sources
Background Accurate data on animal movements can highlight behavioural and ecological issues, such as territorial interactions, barriers to migration patterns, including compromised movement corridors, or avoidance of deteriorating habitats, and disease ...
Claire Moore +3 more
doaj +2 more sources
Positioning accuracy is affected by the combined effect of user range errors and the geometric distribution of satellites. Dilution of precision (DOP) is defined as the geometric strength of visible satellites.
Haomeng Cui, Shoujian Zhang
doaj +2 more sources

