Results 51 to 60 of about 2,020 (171)

Cooperative localization by dual foot-mounted inertial sensors and inter-agent ranging

open access: yes, 2013
The implementation challenges of cooperative localization by dual foot-mounted inertial sensors and inter-agent ranging are discussed and work on the subject is reviewed. System architecture and sensor fusion are identified as key challenges. A partially
Händel, Peter   +3 more
core   +1 more source

GridiLoc: A Backtracking Grid Filter for Fusing the Grid Model with PDR Using Smartphone Sensors

open access: yesSensors, 2016
Although map filtering-aided Pedestrian Dead Reckoning (PDR) is capable of largely improving indoor localization accuracy, it becomes less efficient when coping with highly complex indoor spaces.
Jianga Shang   +3 more
doaj   +1 more source

Toward a unified PNT, Part 1: Complexity and context: Key challenges of multisensor positioning [PDF]

open access: yes, 2014
The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments to meet the needs of a variety of mission-critical applications.
Groves, PD   +4 more
core  

Map matching and heuristic elimination of gyro drift for personal navigation systems in GPS-denied conditions [PDF]

open access: yes, 2011
This paper introduces a method for the substantial reduction of heading errors in inertial navigation systems used under GPS-denied conditions. Presumably, the method is applicable for both vehicle-based and personal navigation systems, but experiments ...
Aggarwal, Priyanka   +3 more
core   +1 more source

Glycemic Control, Animal Protein Intake, and the Risk of Diabetic Retinopathy Progression Among Patients With Type 2 Diabetes

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Effective glycemic control and food consumption play crucial roles in modulating diabetic retinopathy (DR) progression. This observational longitudinal study explored the hemoglobin A1c (HbA1c) and dietary patterns and their associations with the risk and progression of DR among 369 individuals with type 2 diabetes.
Yu‐Ju Wu   +8 more
wiley   +1 more source

Pedestrian inertial navigation: An overview of model and data-driven approaches

open access: yesResults in Engineering
The task of indoor positioning is fundamental to several applications, including navigation, healthcare, location-based services, and security.
Itzik Klein
doaj   +1 more source

Evaluation of electrolyzed water to control fungal trunk pathogens in grapevine nurseries

open access: yesPest Management Science, Volume 81, Issue 4, Page 1740-1751, April 2025.
Electrolyzed water treatments could have promising applications in the grapevine nursery process to prevent or reduce infections caused by fungal trunk pathogens on grapevine propagation material. Abstract BACKGROUND Grapevine producers demand solutions to control fungal trunk pathogens (FTPs) in nurseries.
Mónica Berbegal   +6 more
wiley   +1 more source

Ventilatory and cerebrovascular responses to exercise in lowlander children acclimatizing to high‐altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend To investigate age‐related differences in ventilatory and cerebrovascular responses to exercise at high‐altitude, adults (n = 10, 23–44 years) and children (n = 8, 7–14 years) completed progressive cycling exercise tests at sea‐level and following 6 days of acclimatization at 3800 m.
J. L. Koep   +11 more
wiley   +1 more source

Indoor Pedestrian Self-Positioning Based on Image Acoustic Source Impulse Using a Sensor-Rich Smartphone

open access: yesSensors, 2018
The ubiquity of sensor-rich smartphones provides opportunities for a low-cost method to track indoor pedestrians. In this situation, pedestrian dead reckoning (PDR) is a widely used technology; however, its cumulative error seriously affects its accuracy.
Xiyu Song   +3 more
doaj   +1 more source

Indoor location based services challenges, requirements and usability of current solutions [PDF]

open access: yes, 2017
Indoor Location Based Services (LBS), such as indoor navigation and tracking, still have to deal with both technical and non-technical challenges. For this reason, they have not yet found a prominent position in people’s everyday lives.
Abbas   +57 more
core   +6 more sources

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