Indoor Positioning Integrating PDR/Geomagnetic Positioning Based on the Genetic-Particle Filter
Applied Sciences, 2020 This paper proposes a fusion indoor positioning method that integrates the pedestrian dead-reckoning (PDR) and geomagnetic positioning by using the genetic-particle filter (GPF) algorithm.
Meng Sun +4 more
doaj +2 more sources
Assessing the Drivers of Distribution for a Cryptic Species Over a Large and Rugged Landscape: Occupancy Modeling of the Critically Endangered Northern White‐Cheeked Gibbon [PDF]
Ecology and EvolutionHunting and wildlife trade in Lao PDR (also known as Laos) has left species of larger wild fauna existing at low densities, almost exclusively in remote areas of rugged forest, and wary of human presence.
Jay White +3 more
doaj +2 more sources
A Robust GNSS/PDR Integration Scheme with GRU-Based Zero-Velocity Detection for Mass-Pedestrians
Remote Sensing, 2022 Aiming at the problem of high-precision positioning of mass-pedestrians with low-cost sensors, a robust single-antenna Global Navigation Satellite System (GNSS)/Pedestrian Dead Reckoning (PDR) integration scheme is proposed with Gate Recurrent Unit (GRU)-
Dongpeng Xie +6 more
semanticscholar +1 more source
Cooperative Smartphone GNSS/PDR for Pedestrian Navigation
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2023 Pedestrian navigation using smartphone built-in sensors attracted wide attention with the booming Location-based Service (LBS). Pedestrian Dead Reckoning (PDR) and Global Navigation Satellite Navigation (GNSS) integration is recognized as a reliable ...
Changhui Jiang +6 more
semanticscholar +1 more source
Implementation and performance analysis of the PDR/GNSS integration on a smartphone
GPS Solutions, 2022 Pedestrian dead reckoning (PDR) is an effective technology for pedestrian navigation. In PDR, the steps are detected with the measurements of self-contained sensors, such as accelerometers, and the position is updated with additional heading angles.
Changhui Jiang +6 more
semanticscholar +1 more source
Zhongguo dianli, 2021 At the moment, the problem of wind curtailment in the Northwest is still serious. In this context, to improve the wind power accommodation of a system, this paper combines the adjustable resources on both sides of generation and load in the Northwest and
Xinyuan LIU +5 more
doaj +1 more source
A PDR/WiFi Indoor Navigation Algorithm Using the Federated Particle Filter
Electronics, 2022 This paper offers a solution to challenge navigation in the indoor environment by making use of the existing infrastructure. Estimating pedestrian trajectory using pedestrian dead reckoning (PDR) and WiFi is a very popular technique.
Jian Chen, S. Song, Zhihui Liu
semanticscholar +1 more source
Validity and Reliability of Persian Version of the Patient-Doctor Relationship Questionnaire among Iranian Population in Primary Care [PDF]
Journal of Clinical and Diagnostic Research, 2020 Introduction: Patient-Doctor Relationship (PDR) as recognised by the patients is one of the significant concepts in primary care. In this regard, PDR Questionnaire (PDRQ-9) shows a brief measure of the treatment dimension in primary care.
Mohammadreza Maleki +2 more
doaj +1 more source
NLOS Identification Based UWB and PDR Hybrid Positioning System
IEEE Access, 2021 Some of the researches on indoor positioning have been conducted, but there are still many constraints on indoor positioning approaches. Among these approaches, ultra-wideband (UWB) provides a fast and precise positioning performance but requires a ...
Dae-Ho Kim, Jae-Young Pyun
semanticscholar +1 more source
Low seroprevalence of COVID-19 in Lao PDR, late 2020
The Lancet Regional Health. Western Pacific, 2021 Background: In 2020 Lao PDR had low reported COVID-19 cases but it was unclear whether this masked silent transmission. A seroprevalence study was done August - September 2020 to determine SARS-CoV-2 exposure.
Siriphone Virachith +18 more
doaj +1 more source