Results 21 to 30 of about 226 (204)

GNSS receiver autonomous integrity monitoring (RAIM) algorithm based on robust estimation

Geodesy and Geodynamics, 2016
Integrity is significant for safety-of-life applications. Receiver autonomous integrity monitoring (RAIM) has been developed to provide integrity service for civil aviation.
Yuanxi Yang, Junyi Xu
doaj   +1 more source

A modified between‐receiver single‐difference‐based fault detection and exclusion algorithm for real‐time kinematic positioning

IET Radar, Sonar & Navigation, 2022
With the increasing number of available satellites from multi‐global navigation satellite systems (GNSS) and their applications in complicated environments, an increased number of faults in measurements are inevitable. Fault detection and exclusion (FDE)
Yuting Gao, Yang Gao, Yang Jiang, Baoyu Liu   +3 more
doaj   +1 more source

Machine Learning-Based Fault Detection and Exclusion for Global Navigation Satellite System Pseudorange in the Measurement Domain

Sensors
Global Navigation Satellite Systems (GNSS) support numerous applications, including mission-critical ones that require a high level of integrity for safe operations, such as air, maritime, and land-based navigation. Fault Detection and Exclusion (FDE) is
Ma’mon Saeed Alghananim, Cheng Feng, Yuxiang Feng, Washington Yotto Ochieng   +3 more
doaj   +1 more source

Resilience Monitoring for Multi-Filter All-Source Navigation Framework With Assurance

Navigation, 2022
The Autonomous and Resilient Management of All-source Sensors (ARMAS) framework monitors residual-space test statistics across unique sensor-exclusion banks of filters (known as subfilters) to provide a resilient, fault-resistant all-source navigation ...
Jonathon S. Gipson, Robert C. Leishman
doaj   +1 more source

A Subset-Reduced Method for FDE ARAIM of Tightly-Coupled GNSS/INS

Sensors, 2019
The advanced receiver autonomous integrity monitoring (advanced RAIM, ARAIM) is the next generation of RAIM which is widely used in civil aviation. However, the current ARAIM needs to evaluate hundreds of subsets, which results in huge computational ...
Weichuan Pan, Xingqun Zhan, Xin Zhang, Shizhuang Wang   +3 more
doaj   +1 more source

A Review of the Evolution of the Integrity Methods Applied in GNSS

IEEE Access, 2020
The use of GNSS technologies has been spreading over time up to a point in which a huge diversity of applications require their use. Due to this demand, GNSS has turned into a more reliable technology, as multiple aspects of it have evolved.
Paul Zabalegui, Gorka De Miguel, Alejandro Perez, Jaizki Mendizabal, Jon Goya, Inigo Adin   +5 more
doaj   +1 more source

An Enhanced RAIM Method for Satellite-Based Positioning Using Track Constraint

IEEE Access, 2019
Integrity of global navigation satellite system (GNSS) positioning is one major concern for the GNSS-based railway train control systems due to critical safety requirements.
Jiang Liu, Baigen Cai, Debiao Lu, Jian Wang   +3 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk, Sebastian Michaelis, Michaela Döring, Thomas Eichholz, Ursula Holzer, Martin Ebinger, Tim Flaadt, Rupert Handgretinger, Peter Lang, Jan Frederic Weller, Markus Mezger   +10 more
wiley   +1 more source

A Novel Method for Optimum Global Positioning System Satellite Selection Based on a Modified Genetic Algorithm. [PDF]

PLoS ONE, 2016
In this paper, a novel method for selecting a navigation satellite subset for a global positioning system (GPS) based on a genetic algorithm is presented.
Jiancai Song, Guixiang Xue, Yanan Kang
doaj   +1 more source