Results 41 to 50 of about 2,019,394 (320)

Urban and Indoor Weak Signal Tracking Using an Array Tracker with MVA and Nonlinear Filtering

open access: yesJournal of Applied Mathematics, 2014
We focus on the need for weak GPS signal tracking technique at a receiver powered on in urban or indoor environment; the tracking loop is unlocked and data bit edge position is unknown.
Jicheng Ding, Guoli Zhang, Lin Zhao
doaj   +1 more source

Activity budget and movement patterns of Brown Swiss and Alpine Grey lactating cows during summer grazing in alpine pastures

open access: yesItalian Journal of Animal Science, 2023
We used GPS tracking to monitor the grazing patterns of Brown Swiss and Alpine grey lactating cows on an alpine summer pasture (2038 m a.s.l.; SD = 146) in the Dolomites. The pasture (171 ha) was managed with a continuous grazing system (0.52 LU/ha) with
S. Raniolo   +4 more
doaj   +1 more source

Visitor Mobility and Spatial Structure in a Local Urban Tourism Destination: GPS Tracking and Network analysis

open access: yesSustainability, 2019
Visitor mobility is an important element for facilitating sustainable local economics and management in urban tourism destinations. Research on visitor mobility often focuses on the patterns and structures of spatial visitor behavior and the factors that
Koun Sugimoto, K. Ota, Shohei Suzuki
semanticscholar   +1 more source

An Innovative High-Precision Scheme for a GPS/MEMS-SINS Ultra-Tight Integrated System

open access: yesSensors, 2019
The Doppler-assisted error provided by a low-precision microelectromechanical system (MEMS) strapdown inertial navigation system (SINS) increases rapidly. Therefore, the bandwidth of the tracking loop for a global positioning system (GPS)/MEMS-SINS ultra-
Qunsheng Li, Yan Zhao
doaj   +1 more source

Using Citizen Science to Document Terrain Use and Decision-Making of Backcountry Users

open access: yesCitizen Science: Theory and Practice, 2021
Avalanches represent the primary risk of death to backcountry skiers and snowmobilers in North American and European alpine countries. The best strategy for evading dangerous snowpack conditions that may result in an avalanche event requires skiers and ...
Jerry Johnson, Jordy Hendrikx
doaj   +1 more source

Developing a passive GPS tracking system to study long-term travel behavior

open access: yesTransportation Research Part C: Emerging Technologies, 2018
This paper describes development and testing of a passive GPS tracking smartphone application and corresponding data analysis methodology designed to increase the quality of travel behavior information collected in long-term travel surveys.
A. D. Marra   +3 more
semanticscholar   +1 more source

Identifying Stops and Moves in WiFi Tracking Data

open access: yesSensors, 2018
There are multiple methods for tracking individuals, but the classical ones such as using GPS or video surveillance systems do not scale or have large costs.
Cristian Chilipirea   +3 more
doaj   +1 more source

A deep semi-supervised machine learning algorithm for detecting transportation modes based on GPS tracking data

open access: yesTransportation
Transportation research has benefited from GPS tracking devices since a higher volume of data can be acquired. Trip information such as travel speed, time, and most visited locations can be easily extracted from raw GPS tracking data.
Paria Sadeghian   +3 more
semanticscholar   +1 more source

Geographical, temporal and individual factors influencing foraging behaviour and consistency in Australasian gannets [PDF]

open access: yesRoyal Society Open Science, 2020
Foraging is a behaviour that can be influenced by multiple factors and is highly plastic. Recent studies have shown consistency in individual foraging behaviour has serious ecological and evolutionary implications within species and populations.
Marlenne A. Rodríguez-Malagón   +3 more
doaj   +1 more source

GPS Navigation and Tracking Device

open access: yesInternational Journal of Interactive Mobile Technologies (iJIM), 2011
Since the introduction of GPS Navigation systems in the marketplace, consumers and businesses have been coming up with innovative ways to use the technology in their everyday life. GPS Navigation and Tracking systems keep us from getting lost when we are in strange locations, they monitor children when they are away from home, keep track of business ...
Khraisat, Yahya Salameh   +4 more
openaire   +3 more sources

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